CCNA1

Layer 3 address to a Layer 2 address

The ARP table in a switch maps which two types of address together? 1. Layer 3 address to a Layer 2 address 2. Layer 3 address to a Layer 4 address 3. Layer 4 address to a Layer 2 address 4. Layer 2 address to a Layer 4 address

runt

A collision fragment, also known as a ________ frame, is a frame of fewer than 64 bytes in length.

directed broadcast Explain: A directed broadcast is a message sent to all hosts on a specific network. It is useful for sending a broadcast to all hosts on a nonlocal network. A multicast message is a message sent to a selected group of hosts that are part of a subscribing multicast group. A limited broadcast is used for a communication that is limited to the hosts on the local network. A unicast message is a message sent from one host to another.

A message is sent to all hosts on a remote network. Which type of message is it? limited broadcast multicast directed broadcast unicast

Security, Interference, Coverage area

A network administrator is designing the layout of a new wireless network. Which three areas of concern should be accounted for when building a wireless network? (Choose three.) 1. mobility options 2. security 3. interference 4. coverage area 5. extensive cabling 6. packet collision

EMI, RFI

A network administrator notices that some newly installed Ethernet cabling is carrying corrupt and distorted data signals. The new cabling was installed in the ceiling close to fluorescent lights and electrical equipment. Which two factors may interfere with the copper cabling and result in signal distortion and data corruption? (Choose two.) 1. EMI 2. crosstalk 3. RFI 4. signal attenuation 5. extended length of cabling

The configuration file is missing from NVRAM.

A router boots and enters setup mode. What is the reason for this? 1. The IOS image is corrupt. 2. Cisco IOS is missing from flash memory. 3. The configuration file is missing from NVRAM. 4. The POST process has detected hardware failure.

when the value in the TTL field reaches zero Explain: When a router receives a traceroute packet, the value in the TTL field is decremented by 1. When the value in the field reaches zero, the receiving router will not forward the packet, and will send an ICMP Time Exceeded message back to the source.

A user is executing a tracert to a remote device. At what point would a router, which is in the path to the destination device, stop forwarding the packet? 1. when the router receives an ICMP Time Exceeded message 2. when the RTT value reaches zero 3. when the host responds with an ICMP Echo Reply message 4. when the value in the TTL field reaches zero 5. when the values of both the Echo Request and Echo Reply messages reach zero

HTTP, TCP, IP, Ethernet

A web client is sending a request for a webpage to a web server. From the perspective of the client, what is the correct order of the protocol stack that is used to prepare the request for transmission? 1. HTTP, IP, TCP, Ethernet 2. HTTP, TCP, IP, Ethernet 3. Ethernet, TCP, IP, HTTP 4. Ethernet, IP, TCP, HTTP

spoofing/poisoning

ARP _______ is a technique that is used to send fake ARP messages to other hosts in the LAN. The aim is to associate IP addresses to the wrong MAC addresses.

stateless DHCPv6 Explain: Stateless DHCPv6 allows clients to use ICMPv6 Router Advertisement (RA) messages to automatically assign IPv6 addresses to themselves, but then allows these clients to contact a DHCPv6 server to obtain additional information such as the domain name and address of DNS servers. SLAAC does not allow the client to obtain additional information through DHCPv6, and stateful DHCPv6 requires that the client receive its interface address directly from a DHCPv6 server. RA messages, when combined with an EUI-64 interface identifier, are used to automatically create an interface IPv6 address, and are part of both SLAAC and stateless DHCPv6.

An administrator wants to configure hosts to automatically assign IPv6 addresses to themselves by the use of Router Advertisement messages, but also to obtain the DNS server address from a DHCPv6 server. Which address assignment method should be configured? 1. SLAAC 2. stateless DHCPv6 3. stateful DHCPv6 4. RA and EUI-64

The transmitting node inserts start and stop bits into the frame.

As data travels on the media in a stream of 1s and 0s how does a receiving node identify the beginning and end of a frame? 1. The transmitting node inserts start and stop bits into the frame. 2. The transmitting node sends a beacon to notify that a data frame is attached. 3. The receiving node identifies the beginning of a frame by seeing a physical address. 4. The transmitting node sends an out-of-band signal to the receiver about the beginning of the frame.

network layer

At which layer of the OSI model would a logical address be encapsulated? 1. physical layer 2. data link layer 3. network layer 4. transport layer

Locate and load the startup-config file from NVRAM.

Following default settings, what is the next step in the router boot sequence after the IOS loads from flash? 1. Perform the POST routine. 2. Locate and load the startup-config file from NVRAM. 3. Load the bootstrap program from ROM. 4. Load the running-config file from RAM.

32

How many bits are in an IPv4 address? 1. 32 2. 64 3. 128 4. 256

port-based

On a Cisco switch, _______ memory buffering is used to buffer frames in queues linked to specific incoming and outgoing ports.

SW1 does not have a default gateway configured.

Open the PT Activity. The enable password on all devices is cisco. Perform the tasks in the activity instructions and then answer the question. For what reason is the failure occurring? 1. PC1 has an incorrect default gateway configured. 2. SW1 does not have a default gateway configured. 3. The IP address of SW1 is configured in a wrong subnet. 4. PC2 has an incorrect default gateway configured.

low latency. may forward runt frames. Begins forwarding when the destination address is received

Pick (3) features of cut-through: 1. always stores the entire frame 2. low latency 3. checks the CRC before forwarding 4. may forward runt frames 5. checks the frame length before forwarding 6. begins forwarding when the destination address is received

always stores the entire frame checks the CRC before forwarding checks the frame length before forwarding

Pick (3) features of store-and-forward: 1. always stores the entire frame 2. low latency 3. checks the CRC before forwarding 4. may forward runt frames 5. checks the frame length before forwarding 6. begins forwarding when the destination address is received

A frame with the destination MAC address of RouterA. A packet with the destination IP address of ServerB.

Refer to the exhibit. HostA is attempting to contact ServerB. Which two statements correctly describe the addressing that HostA will generate in the process? (Choose two.) Diagram: Host A->Sw1->RouterA->WAN->RouterB->SwB->ServerB 1. A packet with the destination IP address of RouterB. 2. A frame with the destination MAC address of SwitchA. 3. A packet with the destination IP address of RouterA. 4. A frame with the destination MAC address of RouterA. 5. A packet with the destination IP address of ServerB. 6. A frame with the destination MAC address of ServerB.

application, transport, Internet, and network access layers

Refer to the exhibit. If Host1 were to transfer a file to the server, what layers of the TCP/IP model would be used? DIAGRAM: Host1->Sw1->R1->WAN->R2->WAN-> ISP Server->Sw2->R2->WAN->ISP 1. only application and Internet layers 2. only Internet and network access layers 3. only application, Internet, and network access layers 4. application, transport, Internet, and network access layers 5. only application, transport, network, data link, and physical layers 6. application, session, transport, network, data link, and physical layers

1 - rollover, 2 - straight-through, 3 - crossover

Refer to the exhibit. The PC is connected to the console port of the switch. All the other connections are made through FastEthernet links. Which types of UTP cables can be used to connect the devices? Diagram: 1 . 2 . 3 PC->Sw->R1->R2 1. 1 - rollover, 2 - crossover, 3 - straight-through 2. 1 - rollover, 2 - straight-through, 3 - crossover 3. 1 - crossover, 2 - straight-through, 3 - rollover 4. 1 - crossover, 2 - rollover, 3 - straight-through

The switch will forward the frame to all ports except port 4.

Refer to the exhibit. The exhibit shows a small switched network and the contents of the MAC address table of the switch. PC1 has sent a frame addressed to PC3. What will the switch do with the frame? Diagram: PC4 & PC2 MAC address are found in the MAC address table. 1. The switch will discard the frame. 2. The switch will forward the frame only to port 2. 3. The switch will forward the frame to all ports except port 4. 4. The switch will forward the frame to all ports. 5. The switch will forward the frame only to ports 1 and 3.

Network 1 uses CSMA/CD and Network 3 uses CSMA/CA.

Refer to the exhibit. Which statement describes the media access control methods that are used by the networks in the exhibit? Diagram: PC->Sw->R (network 1) R-(WAN)>Wireless R (net 2) Wireless R->laptop (Net3) 1. All three networks use CSMA/CA 2. None of the networks require media access control. 3. Network 1 uses CSMA/CD and Network 3 uses CSMA/CA. 4. Network 1 uses CSMA/CA and Network 2 uses CSMA/CD. 5. Network 2 uses CSMA/CA and Network 3 uses CSMA/CD.

R1> enable R1(config-line)# : login R1(config)# : service password-encryption R1(config-if)# : ip address 192.168.4.4 255.255.255.0 R1# : copy running-config startup-config

Sort elements: 1. enable 2. login 3. ip address 192.168.4.4 255.255.255.0 4. service password-encryption 5. copy running-config startup-config R1(config-line)# : R1(config)# : R1(config-if)# : R1# : R1>

True

True or False: When a device is sending data to another device on a remote network, the Ethernet frame is sent to the MAC address of the default gateway.

Protocol

What IPv4 header field identifies the upper layer protocol carried in the packet? 1. Protocol 2. Identification 3. Version 4. Differentiated Services

Logical Link Control (LLC)

What acronym is used to reference the data link sublayer that identifies the network layer protocol encapsulated in the frame?

the source Layer 2 address of incoming frames

What addressing information is recorded by a switch to build its MAC address table? 1. the destination Layer 3 address of incoming packets 2. the destination Layer 2 address of outgoing frames 3. the source Layer 3 address of outgoing packets 4. the source Layer 2 address of incoming frames

protocols developed by organizations who have control over their definition and operation.

What are proprietary protocols? 1. protocols developed by private organizations to operate on any vendor hardware 2. protocols that can be freely used by any organization or vendor 3. protocols developed by organizations who have control over their definition and operation 4. a collection of protocols known as the TCP/IP protocol suite

64, 1518

What are the two sizes (minimum and maximum) of an Ethernet frame? (Choose two.) 1. 56 bytes 2. 64 bytes 3. 128 bytes 4. 1024 bytes 5. 1518 bytes

2. A single packet can be sent to a group of hosts. 3. Multicast transmission can be used by routers to exchange routing information. 4. The range of 224.0.0.0 to 224.0.0.255 is reserved to reach multicast groups on a local network. Explain: Broadcast messages consist of single packets that are sent to all hosts on a network segment. These types of messages are used to request IPv4 addresses, and map upper layer addresses to lower layer addresses. A multicast transmission is a single packet sent to a group of hosts and is used by routing protocols, such as OSPF and RIPv2, to exchange routes. The address range 224.0.0.0 to 224.0.0.255 is reserved for link-local addresses to reach multicast groups on a local network.

What are three characteristics of multicast transmission? (Choose three.) 1. The source address of a multicast transmission is in the range of 224.0.0.0 to 224.0.0.255. 2. A single packet can be sent to a group of hosts. 3. Multicast transmission can be used by routers to exchange routing information. 4. The range of 224.0.0.0 to 224.0.0.255 is reserved to reach multicast groups on a local network. 5. Computers use multicast transmission to request IPv4 addresses. 6. Multicast messages map lower layer addresses to upper layer addresses.

a global routing prefix that is used to identify the network portion of the address that has been provided by an ISP a subnet ID that is used to identify networks inside of the local enterprise site an interface ID that is used to identify the local host on the network Explain: There are three elements that make up an IPv6 global unicast address. A global routing prefix which is provided by an ISP, a subnet ID which is determined by the organization, and an interface ID which uniquely identifies the interface interface of a host.

What are three parts of an IPv6 global unicast address? (Choose three.) 1. an interface ID that is used to identify the local network for a particular host 2. a global routing prefix that is used to identify the network portion of the address that has been provided by an ISP 3. a subnet ID that is used to identify networks inside of the local enterprise site 4. a global routing prefix that is used to identify the portion of the network address provided by a local administrator 5. an interface ID that is used to identify the local host on the network

Does not require a dedicated end-to-end connection. Operates independently of the network media.

What are two characteristics of IP? (Choose two.) 1. does not require a dedicated end-to-end connection 2. operates independently of the network media 3. retransmits packets if errors occur 4. re-assembles out of order packets into the correct order at the receiver end 5. guarantees delivery of packets

partial mesh, extended star

What are two examples of hybrid topologies? (Choose two.) 1. partial mesh 2. full mesh 3. hub and spoke 4. extended star 5. point-to-point

On large networks with low bandwidth, multiple ARP broadcasts could cause data communication delays. Network attackers could manipulate MAC address and IP address mappings in ARP messages with the intent of intercepting network traffic.

What are two potential network problems that can result from ARP operation? (Choose two.) (2,3) 1. Manually configuring static ARP associations could facilitate ARP poisoning or MAC address spoofing. 2. On large networks with low bandwidth, multiple ARP broadcasts could cause data communication delays. 3. Network attackers could manipulate MAC address and IP address mappings in ARP messages with the intent of intercepting network traffic. 4. Large numbers of ARP request broadcasts could cause the host MAC address table to overflow and prevent the host from communicating on the network. 5. Multiple ARP replies result in the switch MAC address table containing entries that match the MAC addresses of hosts that are connected to the relevant switch port.

line console 0, login, password cisco

Which three commands are used to set up secure access to a router through a connection to the console interface? (Choose three.) 1. interface fastethernet 0/0 2. line vty 0 4 3. line console 0 4. enable secret cisco 5. login 6. password cisco

to distinguish data bits from control bit. to identify where the frame starts and ends.

What are two reasons for physical layer protocols to use frame encoding techniques? (Choose two.) 1. to reduce the number of collisions on the media 2. to distinguish data bits from control bit 3. to provide better media error correction 4. to identify where the frame starts and ends 5. to increase the media throughput

It accepts Layer 3 packets and encapsulates them into frames. It provides media access control and performs error detection.

What are two services performed by the data link layer of the OSI model? (Choose two.) 1. It encrypts data packets. 2. It determines the path to forward packets. 3. It accepts Layer 3 packets and encapsulates them into frames. 4. It provides media access control and performs error detection. 5. It monitors the Layer 2 communication by building a MAC address table.

loopback link-local Explain: Multicast, anycast, and unicast are types of IPv6 addresses. There is no broadcast address in IPv6. Loopback and link-local are specific types of unicast addresses.

What are two types of IPv6 unicast addresses? (Choose two.) 1. multicast 2. loopback 3. link-local 4. anycast 5. broadcast

LAN, WAN

What are two types of router interfaces? (Choose two.) 1. SVI 2. LAN 3. DHCP 4. Telnet 5. WAN

host address Explain: The /24 shows that the network address is 172.17.4.0. The broadcast address for this network would be 172.17.4.255. Useable host addresses for this network are 172.17.4.1 through 172.17.4.254.

What does the IP address 172.17.4.250/24 represent? 1. network address 2. multicast address 3. host address 4. broadcast address

Hop Limit Field Explain: ICMPv6 sends a Time Exceeded message if the router cannot forward an IPv6 packet because the packet expired. The router uses a hop limit field to determine if the packet has expired, and does not have a TTL field.

What field content is used by ICMPv6 to determine that a packet has expired? 1. TTL field 2. CRC field 3. Hop Limit field* 4. Time Exceeded field

The frame is dropped.

What happens to runt frames received by a Cisco Ethernet switch? 1. The frame is dropped. 2. The frame is returned to the originating network device. 3. The frame is broadcast to all other devices on the same network. 4. The frame is sent to the default gateway.

to mark frames to identify the network layer protocol being carried.

What is a role of the Logical Link Control sublayer? 1. to define the media access processes performed by network hardware 2. to provide data link layer addressing 3. to mark frames to identify the network layer protocol being carried 4. to provide access to various Layer 1 network technologies

A client host and a server running different operating systems can successfully exchange data.

What is an advantage of network devices using open standard protocols? 1. Network communications is confined to data transfers between devices from the same vendor. 2. A client host and a server running different operating systems can successfully exchange data. 3. Internet access can be controlled by a single ISP in each market. 4. Competition and innovation are limited to specific types of products.

Products from different manufacturers can interoperate successfully.

What is an advantage of using standards to develop and implement protocols? 1. A particular protocol can only be implemented by one manufacturer. 2. Products from different manufacturers can interoperate successfully. 3. Different manufacturers are free to apply different requirements when implementing a protocol. 4. Standards provide flexibility for manufacturers to create devices that comply with unique requirements.

a feature that detects Ethernet cable type

What is auto-MDIX? 1. a type of Cisco switch 2. an Ethernet connector type 3. a type of port on a Cisco switch 4. a feature that detects Ethernet cable type

error detection

What is contained in the trailer of a data-link frame? 1. logical address 2. physical address 3. data 4. error detection

IP is properly installed on the host. Explain: The IPv6 address ::1 is the loopback address. A successful ping to this address means that the TCP/IP stack is correctly installed. It does not mean that any addresses are correctly configured.

What is indicated by a successful ping to the ::1 IPv6 address? 1. The host is cabled properly. 2. The default gateway address is correctly configured. 3. All hosts on the local link are available. 4. The link-local address is correctly configured. 5. IP is properly installed on the host.

The measure of the bits transferred across the media over a given period of time.

What is indicated by the term throughput? 1. the guaranteed data transfer rate offered by an ISP 2. the capacity of a particular medium to carry data 3. the measure of the usable data transferred across the media 4. the measure of the bits transferred across the media over a given period of time 5. the time it takes for a message to get from sender to receiver

It is able to carry signals much farther than copper cabling.

What is one advantage of using fiber optic cabling rather than copper cabling? 1. It is usually cheaper than copper cabling. 2. It is able to be installed around sharp bends. 3. It is easier to terminate and install than copper cabling. 4. It is able to carry signals much farther than copper cabling.

efficient packet handling.

What is one advantage that the IPv6 simplified header offers over IPv4? 1. smaller-sized header 2. little requirement for processing checksums 3. smaller-sized source and destination IP addresses 4. efficient packet handling

11101000

What is the binary equivalent of the decimal number 232? 1. 11101000 2. 11000110 3. 10011000 4. 11110010

149

What is the decimal equivalent of the binary number 10010101? 1. 149 2. 157 3. 168 4. 192

63

What is the decimal equivalent of the hex number 0x3F

to verify the integrity of the received frame.

What is the function of the CRC value that is found in the FCS field of a frame? 1. to verify the integrity of the received frame 2. to verify the physical address in the frame 3. to verify the logical address in the frame 4. to compute the checksum header for the data field in the frame

to provide feedback of IP packet transmissions Explain: The purpose of ICMP messages is to provide feedback about issues that are related to the processing of IP packets.

What is the purpose of ICMP messages? 1. to inform routers about network topology changes 2. to ensure the delivery of an IP packet 3. to provide feedback of IP packet transmissions 4. to monitor the process of a domain name to IP address resolution

to contain the commands that are used to initially configure a router on startup.

What is the purpose of the startup configuration file on a Cisco router? 1. to facilitate the basic operation of the hardware components of a device 2. to contain the commands that are used to initially configure a router on startup 3. to contain the configuration commands that the router IOS is currently using 4. to provide a limited backup version of the IOS, in case the router cannot load the full featured IOS

to determine the subnet to which the host belongs Explain: With the IPv4 address, a subnet mask is also necessary. A subnet mask is a special type of IPv4 address that coupled with the IP address determines the subnet of which the device is a member. ​

What is the purpose of the subnet mask in conjunction with an IP address? 1. to uniquely identify a host on a network 2. to identify whether the address is public or private 3. to determine the subnet to which the host belongs. 4. to mask the IP address to outsiders

Logical topologies refer to how a network transfers data between devices.

What is true concerning physical and logical topologies? 1. The logical topology is always the same as the physical topology. 2. Physical topologies are concerned with how a network transfers frames. 3. Physical topologies display the IP addressing scheme of each network. 4. Logical topologies refer to how a network transfers data between devices.

flow control

What method can be used by two computers to ensure that packets are not dropped because too much data is being sent too quickly? 1. encapsulation 2. flow control 3. access method 4. response timeout

encapsulation

What process is used to place one message inside another message for transfer from the source to the destination? 1. access control 2. decoding 3. encapsulation 4. flow control

remote routes

What routing table entry has a next hop address associated with a destination network? 1. directly-connected routes 2. local routes 3. remote routes 4. C and L source routes

It defines the most common LAN type in the world.

What statement describes Ethernet? 1. It defines the most common LAN type in the world. 2. It is the required Layer 1 and 2 standard for Internet communication. 3. It defines a standard model used to describe how networking works. 4. It connects multiple sites such as routers located in different countries.

They must be globally unique.

What statement describes a characteristic of MAC addresses? 1. They must be globally unique. 2. They are only routable within the private network. 3. They are added as part of a Layer 3 PDU. 4. They have a 32-bit binary value.

255.255.240.0 Explain: The slash notation /20 represents a subnet mask with 20 1s. This would translate to: 11111111.11111111.11110000.0000, which in turn would convert into 255.255.240.0.

What subnet mask is represented by the slash notation /20? 1. 255.255.255.248 2. 255.255.224.0 3. 255.255.240.0 4. 255.255.255.0 5. 255.255.255.192

twisting the wires together into pairs.

What technique is used with UTP cable to help protect against signal interference from crosstalk? 1. twisting the wires together into pairs 2. wrapping a foil shield around the wire pairs 3. encasing the cables within a flexible plastic sheath 4. terminating the cable with special grounded connectors

DHCP, DNS, FTP

What three application layer protocols are part of the TCP/IP protocol suite? (Choose three.) 1. ARP 2. DHCP 3. DNS 4. FTP 5. NAT 6. PPP

link-local Explain: When IPv6 is enabled on any interface, that interface will automatically generate an IPv6 link-local address.

What type of address is automatically assigned to an interface when IPv6 is enabled on that interface? 1. global unicast 2. link-local 3. loopback 4. unique local

broadcast

What type of communication will send a message to all devices on a local area network? 1. broadcast 2. multicast 3. unicast 4. Allcast

directly connected route

What type of route is indicated by the code C in an IPv4 routing table on a Cisco router? 1. static route 2. default route 3. directly connected route 4. dynamic route that is learned through EIGRP

The host cannot communicate with hosts in other networks.

What will happen if the default gateway address is incorrectly configured on a host? (4) 1. The host cannot communicate with other hosts in the local network. 2. The switch will not forward packets initiated by the host. 3. The host will have to use ARP to determine the correct address of the default gateway. 4. The host cannot communicate with hosts in other networks. 5. A ping from the host to 127.0.0.1 would not be successful.

Upper-layer connection-oriented protocols keep track of the data received and can request retransmission from the upper-level protocols on the sending host.

When a connectionless protocol is in use at a lower layer of the OSI model, how is missing data detected and retransmitted if necessary? 1. Connectionless acknowledgements are used to request retransmission. 2. Upper-layer connection-oriented protocols keep track of the data received and can request retransmission from the upper-level protocols on the sending host. 3. Network layer IP protocols manage the communication sessions if connection-oriented transport services are not available. 4. The best-effort delivery process guarantees that all packets that are sent are received.

frame

Which PDU format is used when bits are received from the network medium by the NIC of a host? 1. file 2. frame 3. packet 4. Segment

destination MAC address

Which address does a NIC use when deciding whether to accept a frame? 1. source IP address 2. source MAC address 3. destination IP address 4. destination MAC address 5. source Ethernet address

application, presentation, session

Which three layers of the OSI model are comparable in function to the application layer of the TCP/IP model? (Choose three.) 1. application 2. presentation 3. session 4. transport 5. data link 6. physical 7. network

The IPv6 header is simpler than the IPv4 header is, which improves packet handling.

Which characteristic describes an IPv6 enhancement over IPv4? 1. IPv6 addresses are based on 128-bit flat addressing as opposed to IPv4 which is based on 32-bit hierarchical addressing. 2. The IPv6 header is simpler than the IPv4 header is, which improves packet handling. 3. Both IPv4 and IPv6 support authentication, but only IPv6 supports privacy capabilities. 4. The IPv6 address space is four times bigger than the IPv4 address space.

The distortion of the transmitted messages from signals carried in adjacent wires.

Which characteristic describes crosstalk? (2) 1. the distortion of the network signal from fluorescent lighting 2. the distortion of the transmitted messages from signals carried in adjacent wires* 3. the weakening of the network signal over long cable lengths 4. the loss of wireless signal over excessive distance from the access point

The logical address of the router interface on the same network as the host computer.

Which characteristic describes the default gateway of a host computer? 1. the logical address of the router interface on the same network as the host computer 2. the physical address of the switch interface connected to the host computer 3. the physical address of the router interface on the same network as the host computer 4. the logical address assigned to the switch interface connected to the router

the ability to operate without regard to the data that is carried in each packet

Which characteristic of the network layer in the OSI model allows carrying packets for multiple types of communications among many hosts? 1. the de-encapsulation of headers from lower layers 2. the selection of paths for and direct packets toward the destination 3. the ability to operate without regard to the data that is carried in each packet 4. the ability to manage the data transport between processes running on hosts

FFFF.FFFF.FFFF

Which destination address is used in an ARP request frame? 1. 0.0.0.0 2. 255.255.255.255 3. FFFF.FFFF.FFFF 4. 127.0.0.1 5. 01-00-5E-00-AA-23

Time-to-Live

Which field in the IPv4 header is used to prevent a packet from traversing a network endlessly? 1. Time-to-Live 2. Sequence Number 3. Acknowledgment Number 4. Differentiated Services

Data Link

Which layer of the OSI model is responsible for specifying the encapsulation method used for specific types of media? 1. application 2. transport 3. data link 4. Physical

Full Duplex

Which method of data transfer allows information to be sent and received at the same time? 1. full duplex 2. half duplex 3. multiplex 4. Simplex

3FFE:1044:0:0:AB::57

Which of these addresses is the shortest abbreviation for the IP address: 3FFE:1044:0000:0000:00AB:0000:0000:0057? 1. 3FFE:1044::AB::57 2. 3FFE:1044::00AB::0057 3. 3FFE:1044:0:0:AB::57 4. 3FFE:1044:0:0:00AB::0057 5. 3FFE:1044:0000:0000:00AB::57 6. 3FFE:1044:0000:0000:00AB::0057

ICMPv6 Explain: SLAAC uses ICMPv6 messages when dynamically assigning an IPv6 address to a host. DHCPv6 is an alternate method of assigning an IPv6 addresses to a host. ARPv6 does not exist. Neighbor Discovery Protocol (NDP) provides the functionality of ARP for IPv6 networks. UDP is the transport layer protocol used by DHCPv6.

Which protocol supports Stateless Address Autoconfiguration (SLAAC) for dynamic assignment of IPv6 addresses to a host? 1. ARPv6 2. DHCPv6 3. ICMPv6 4. UDP

It has two types of ports that can be used to access the console.

Which statement describes a hardware feature of a Cisco 1941 router that has the default hardware configuration? 1. It does not have an AUX port. 2. It has three FastEthernet interfaces for LAN access. 3. It has two types of ports that can be used to access the console. 4. It does not require a CPU because it relies on Compact Flash to run the IOS.

End devices connect to a central intermediate device, which in turn connects to other central intermediate devices.

Which statement describes an extended star topology? 1. End devices connect to a central intermediate device, which in turn connects to other central intermediate devices. 2. End devices are connected together by a bus and each bus connects to a central intermediate device. 3. Each end system is connected to its respective neighbor via an intermediate device. 4. All end and intermediate devices are connected in a chain to each other.

They are received and processed by every device on the local network.

Which statement describes the treatment of ARP requests on the local link? 1. They must be forwarded by all routers on the local network. 2. They are received and processed by every device on the local network. 3. They are dropped by all switches on the local network. 4. They are received and processed only by the target device.

They define how messages are exchanged between the source and the destination.

Which statement is correct about network protocols? 1. Network protocols define the type of hardware that is used and how it is mounted in racks. 2. They define how messages are exchanged between the source and the destination. 3. They all function in the network access layer of TCP/IP. 4. They are only required for exchange of messages between devices on remote networks.

The first three bytes are used by the vendor assigned OUI.

Which statement is true about MAC addresses? 1. MAC addresses are implemented by software. 2. A NIC only needs a MAC address if connected to a WAN. 3. The first three bytes are used by the vendor assigned OUI. 4. The ISO is responsible for MAC addresses regulations.

The TCP/IP transport layer and OSI Layer 4 provide similar services and functions.

Which statement is true about the TCP/IP and OSI models? 1. The TCP/IP transport layer and OSI Layer 4 provide similar services and functions. 2. The TCP/IP network access layer has similar functions to the OSI network layer. 3. The OSI Layer 7 and the TCP/IP application layer provide identical functions. 4. The first three OSI layers describe general services that are also provided by the TCP/IP internet layer.

store-and-forward

Which switching method uses the CRC value in a frame? 1. cut-through 2. fast-forward 3. fragment-free 4. store-and-forward

10.1.1.1 172.16.4.4 192.168.5.5 Explain: The private IP addresses are within these three ranges: 10.0.0.0 - 10.255.255.255 172.16.0.0 - 172.31.255.255 192.168.0.0 - 192.168.255.255

Which three IP addresses are private ? (Choose three.) 1. 10.1.1.1 2. 172.32.5.2 3. 192.167.10.10 4. 172.16.4.4 5. 192.168.5.5 6. 224.6.6.6

dual stack tunneling Explain: There are three techniques to allow IPv4 and IPv6 to co-exist on a network. Dual stack allows IPv4 and IPv6 to coexist on the same network segment. Dual stack devices run both IPv4 and IPv6 protocol stacks simultaneously. Tunneling is a method of transporting an IPv6 packet over an IPv4 network. The IPv6 packet is encapsulated inside an IPv4 packet, similar to other types of data. Network Address Translation 64 (NAT64) allows IPv6-enabled devices to communicate with IPv4-enabled devices using a translation technique similar to NAT for IPv4

Which two IPv4 to IPv6 transition techniques manage the interconnection of IPv6 domains? (Choose two.) 1. trunking 2. dual stack 3. encapsulation 4. tunneling 5. multiplexing

network portion host portion

Which two parts are components of an IPv4 address? (Choose two.) 1. subnet portion 2. network portion 3. logical portion 4. host portion 5. physical portion 6. broadcast portion

Cisco IOS, IP routing table

Which two pieces of information are in the RAM of a Cisco router during normal operation? (Choose two.) 1. Cisco IOS 2. backup IOS file 3. IP routing table 4. basic diagnostic software 5. startup configuration file

Logical link control is implemented in software. The data link layer uses LLC to communicate with the upper layers of the protocol suite.

Which two statements describe features or functions of the logical link control sublayer in Ethernet standards? (Choose two.) 1. Logical link control is implemented in software. 2. Logical link control is specified in the IEEE 802.3 standard. 3. The LLC sublayer adds a header and a trailer to the data. 4. The data link layer uses LLC to communicate with the upper layers of the protocol suite. 5. The LLC sublayer is responsible for the placement and retrieval of frames on and off the media.

the average time it takes a packet to reach the destination and for the response to return to the source the destination device is reachable through the network. Explain: A ping command provides feedback on the time between when an echo request was sent to a remote host and when the echo reply was received. This can be a measure of network performance. A successful ping also indicates that the destination host was reachable through the network.

Which two things can be determined by using the ping command? (Choose two.) 1. the number of routers between the source and destination device 2. the IP address of the router nearest the destination device 3. the average time it takes a packet to reach the destination and for the response to return to the source 4. the destination device is reachable through the network 5. the average time it takes each router in the path between source and destination to respond

They allow for full-duplex connectivity.

Why are two strands of fiber used for a single fiber optic connection? 1. The two strands allow the data to travel for longer distances without degrading. 2. They prevent crosstalk from causing interference on the connection. 3. They increase the speed at which the data can travel. 4. They allow for full-duplex connectivity.