Cisco Final 1

169.254.1.5

- A link-local address

Message sizing

- The process of breaking up a long message into individual pieces before being sent over the network.

An organization is assigned an IPv6 address block of 2001:db8:0:ca00::/56. How many subnets can be created without using bits in the interface ID space?

256

240.2.6.255

An experimental address

A client packet is received by a server. The packet has a destination port number of 143. What service is the client requesting?

IMAP

A client packet is received by a server. The packet has a destination port number of 22. What service is the client requesting?

SSH

Refer to the exhibit. Match the network with the correct IP address and prefix that will satisfy the usable host addressing requirements for each network.

network A: 192.168.0.128/25Network B: 192.168.0.0/26Network C: 192.168.0.96/27Network D: 192.168.0.80/30

Which two statements are correct about MAC and IP addresses during data transmission if NAT is not involved? (Choose two.)

- Destination IP addresses in a packet header remain constant along the entire path to a target host.- Destination and source MAC addresses have local significance and change every time a frame goes from one LAN to another.

Which value, that is contained in an IPv4 header field, is decremented by each router that receives a packet?

- Differentiated Services

A network administrator is adding a new LAN to a branch office. The new LAN must support 200 connected devices. What is the smallest network mask that the network administrator can use for the new network?

- 255.255.255.0

Refer to the exhibit. A company uses the address block of 128.107.0.0/16 for its network. What subnet mask would provide the maximum number of equal size subnets while providing enough host addresses for each subnet in the exhibit?

- 255.255.255.128

A network administrator is adding a new LAN to a branch office. The new LAN must support 61 connected devices. What is the smallest network mask that the network administrator can use for the new network?

- 255.255.255.192

A network administrator is adding a new LAN to a branch office. The new LAN must support 25 connected devices. What is the smallest network mask that the network administrator can use for the new network?

- 255.255.255.224

A network administrator is adding a new LAN to a branch office. The new LAN must support 10 connected devices. What is the smallest network mask that the network administrator can use for the new network?

- 255.255.255.240

A network administrator wants to have the same subnet mask for three subnetworks at a small site. The site has the following networks and numbers of devices:- Subnetwork A: IP phones - 10 addresses- Subnetwork B: PCs - 8 addresses- Subnetwork C: Printers - 2 addresses- What single subnet mask would be appropriate to use for the three subnetworks?

- 255.255.255.240

What are three characteristics of the CSMA/CD process? (Choose three.)

- A device listens and waits until the media is not busy before transmitting.- After detecting a collision, hosts can attempt to resume transmission after a random time delay has expired.- All of the devices on a segment see data that passes on the network medium.

127.0.0.1

- A loopback address

What characteristic describes an IPS?

- A network device that filters access and traffic coming into a network.

198.133.219.2

- A public Address

Which scenario describes a function provided by the transport layer?

- A student has two web browser windows open in order to access two web sites. The transport layer ensures the correct web page is delivered to the correct browser window.

Refer to the exhibit. Which protocol was responsible for building the table that is shown?- Interface: 192.168.1.67 - 0xa- Internet address physical address type- 192.168.1.254 64-0f-29-0d-36-91 dynamic- interface: 10.82.253.91 - -0x10

- ARP

What are two primary responsibilities of the Ethernet MAC sublayer? (Choose two.)

- Accessing the media.- Data encapsulation.

What service is provided by SMTP?

- Allows clients to send email to a mail server and the servers to send email to other servers.

Store-and-forward forwarding method

- Always stores the entire frame.- Checks the CRC before forwarding.- Checks the frame length before forwarding.

What service is provided by Internet Messenger?

- An application that allows real-time chatting among remote users.

Refer to the exhibit. If Host1 were to transfer a file to the server, what layers of the TCP/IP model would be used?

- Application, transport, internet, and network access layers.

Three bank employees are using the corporate network. The first employee uses a web browser to view a company web page in order to read some announcements. The second employee accesses the corporate database to perform some financial transactions. The third employee participates in an important live audio conference with other corporate managers in branch offices. If QoS is implemented on this network, what will be the priorities from highest to lowest of the different data types?

- Audio conference, financial transactions, web page.

Refer to the exhibit. If host A sends an IP packet to host B, what will the destination address be in the frame when it leaves host A?

- BB:BB:BB:BB:BB:BB

IP address

- Contained in the Layer 3 header.- Separated into a network portion and a unique identifier.- 32 or 128 bits

A client packet is received by a server. The packet has a destination port number of 53. What service is the client requesting?

- DNS

Which type of server relies on record types such as A, NS, AAAA, and MX in order to provide services?

- DNS

Which two protocols operate at the top layer of the TCP/IP protocol suite? (Choose two.)

- DNS- POP

What are two functions that are provided by the network layer? (Choose two.)

- Directing data packets to destination hosts on other networks.- Providing end devices with a unique network identifier.

What are two characteristics of IP? (Choose two.)

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

What service is provided by DHCP?

- Dynamically assigns IP addresses to end and intermediary devices.

Which range of link-local addresses can be assigned to an IPv6-enabled interface?

- FE80::/10

A client packet is received by a server. The packet has a destination port number of 21. What service is the client requesting?

- FTP

TCP

- FTP- HTTP- SMTP

A network technician is researching the use of fiber optic cabling in a new technology center. Which two issues should be considered before implementing fiber optic media? (Choose two.)

- Fiber optic cabling requires different termination and splicing expertise from what copper cabling requires.- Fiber optic provides higher data capacity but is more expensive than copper cabling.

Cut-through forwarding method

- Has low latency- May forward runt frames- Begins forwarding when the destination address is received.

Logical topology diagram

- IP address of a server

What characteristic describes a DoS attack?

An attack that slows or crashes a device or network service.

Which connector is used with twisted-pair cabling in an Ethernet LAN?

RJ-45 connector

Which wireless technology has low-power and data rate requirements making it popular in home automation applications?

ZigBee

Refer to the exhibit. A network engineer has been given the network address of 192.168.99.0 and a subnet mask of 255.255.255.192 to subnet across the four networks shown. How many total host addresses are unused across all four subnets?

- 200

Refer to the exhibit. Which two network addresses can be assigned to the network containing 10 hosts? Your answers should waste the fewest addresses, not reuse addresses that are already assigned, and stay within the 10.18.10.0/24 range of addresses. (Choose two.

- 10.18.10.208/28- 10.18.10.224/28

What would be the interface ID of an IPv6 enabled interface with a MAC address of 1C-6F-65-C2-BD-F8 when interface ID is generated by using the EUI-64 process?

- 1E6F:65FF:FEC2:BDF8

What would be the interface ID of an IPv6 enabled interface with a MAC address of 1C-6F-65-C2-BD-F8 when the interface ID is generated by using the EUI-64 process?

- 1E6F:65FF:FEC2:BDF8

refer to the exhibit. The network administrator has assigned the LAN of LBMISS an address range of 192.168.10.0. This address range has been subneted using a /29 prefix. In order to accommodate a new building, the technician has decided to use the fifth subnet for configuring the new network (subnet zero is the first subnet). By company policies, the router interface is always assigned the first usable host address and the workgroup server is given the last usable host address. Which configuration should be entered into the properties of the workgroup server to allow connectivity to the Internet?

- IP address: 192.168.10.38 subnet mask: 255.255.255.248, default gateway: 192.168.10.33

What two pieces of information are displayed in the output of the show ip interface brief command? (Choose two.)

- IP addresses- Layer 1 statuses

Which two functions are performed at the MAC sublayer of the OSI Data Link Layer to facilitate Ethernet communication? (Choose two.)

- Integrates Layer 2 flows between 10 Gigabit Ethernet over fiber and 1 Gigabit Ethernet over copper.- Implements CSMA/CD over legacy shared half-duplex media.

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.)

- Interference- Security- Coverage area

Which layer of the TCP/IP model provides a route to forward messages through an internetwork?

- Internet

How does the service password-encryption command enhance password security on Cisco routers and switches?

- It encrypts passwords that are stored in router or switch configuration files.

What is one main characteristic of the data link layer?

- It shields the upper layer protocol from being aware of the physical medium to be used in the communication.

Which two statements describe features of an IPv4 routing table on a router? (Choose two.)

- It stores information about routes derived from the active router interfaces.- If a default static route is configured in the router, an entry will be included in the routing table with source code S.

A host is trying to send a packet to a device on a remote LAN segment, but there are currently no mapping s in it s ARP cache. How will the device obtain a destination MAC address?

- It will send a request to the DNA server for the destination MAC address.

Physical topology diagram

- Location of a desktop PC in a classroom- Path of cables that connect rooms to writing closets

What does the term "attenuation" mean in data communication?

- Loss of signal strength as distance increases.

What attribute of a NIC would place it at the data link layer of the OSI model?

- MAC address

What three requirements are defined by the protocols used in network communications to allow message transmission across a network? (Choose three.)

- Message size- Message encoding- Delivery options

Retransmission

- Method of managing segments of data loss.

Peer-to-Peer network

- No dedicated server is required.- Client and server roles are set on a per request basis.What service is provided by SMTP?What service is provided by SMTP?

Window size

- Number of bytes a destination device can accept and process at one time.

Refer to the exhibit. The switches are in their default configuration. Host A needs to communicate with host D, but host A does not have the MAC address for its default gateway. Which network hosts will receive the ARP request sent by host A?

- Only host B, C, and router R1.

A client packet is received by a server. The packet has a destination port number of 110. What service is the client requesting?

- POP3

What are two characteristics shared by TCP and UDP? (Choose two.)

- Port numbering- Use of checksum

What are proprietary protocols?

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

Refer to the exhibit. The IP address of which device interface should be used as the default gateway setting of host H1?

- R1: G0/0

Acknowledgement

- Received by a sender before transmitting more segments in a session.

Peer-to-peer application

- Requires a specific user interface.- A background service is required.

What service is provided by DNS?

- Resolves domain names, such as cisco.com, into IP addresses.

UDP

- TFTP- DHCP

A user sends an HTTP request a web server on a remote network. During encapsulation for this request, what information is added to the address field of a frame to indicate the destination?

- The MAC address of the default gateway.

A technician with a PC is using multiple applications while connected to the Internet. How is the PC able to keep track of the data flow between multiple application sessions and have each application receive the correct packet flows?

- The data flow is being tracked based on the source port number that is used by each application.

Refer to the exhibit. An administrator is trying to configure the switch but receives the error message that is displayed in the exhibit. What is the problem?Switch1> config t^% Invalid input detected at '^' marker.

- The entire command, configure terminal, must be used.

Message encoding

- The process of converting information from one format into another acceptable for transmission.

Message encapsulation

- The process of placing one message format inside another message format.

Data is being sent from a source PC to a destination server. Which three statements correctly describe the function of TCP or UDP in this situation? (Choose three.)

- The source port field identifies the running application or service that will handle data returning to the PC.- UDP segments are encapsulated within IP packets for transport across the network.- The UDP destination port number identifies the application or service on the server which will handle the data.

The global configuration command ip default-gateway 172.16.100.1 is applied to a switch. Which is the effect of this command?

- The switch can be remotely managed from a host on another network.

Refer to the exhibit. What is wrong with the displayed termination?

- The untwisted length of each wire is too long.

What characteristic describes identity theft?

- The use of stolen credentials to access private data

Global routing prefix

- This network portion of the address is assigned by the provider.

Interface ID

- This part of the address is the equivalent to the host portion of an IPv4 address.

Subnet ID

- This part of the address is used by an organization to identify subnets.

What technique is used with UTP cable to help protect against signal interference from crosstalk?

- Twisting the wires together into pairs.

Sequence numbers

- Used to identify missing segments of data.

What service is provided by HTTPS?

- Uses encryption to secure the exchange of text, graphic images, sound, and video on the web.

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?

- When the value in the TTL field reaches zero.

Which wireless technology has low-power and low-data rate requirements making it popular in IoT environments?

- Zigbee

A company has a file server that shares a folder named Public. The network security policy specifies that the Public folder is assigned Read-Only rights to anyone who can log into the server while the Edit rights are assigned only to the network admin group. Which component is addressed in the AAA network service framework?

- authorization

What command can be used on a Windows PC to see the IP configuration of that computer?

- ipconfig

What characteristic describes a Trojan horse?

- malicious software or code running on an end device

What characteristic describes a virus?

- malicious software or code running on an end device

What two ICMPv6 message types must be permitted through IPv6 access control lists to allow resolution of Layer 3 addresses to Layer 2 MAC addresses? (Choose two.)

- neighbor solicitations- neighbor advertisements

A wired laser printer is attached to a home computer. That printer has been shared so that other computers on the home network can also use the printer. What networking model is in use?

- peer-to-peer (P2P)

Which two commands can be used on a Windows host to display the routing table? (Choose two.)

- route print- netstat -r

When a switch configuration includes a user-defined error threshold on a per-port basis, to which switching method will the switch revert when the error threshold is reached?

- store-and-forward

Users report that the network access is slow. After questioning the employees, the network administrator learned that one employee downloaded a third-party scanning program for the printer. What type of malware might be introduced that causes slow performance of the network?

- worm

Refer to the exhibit. Host B on subnet Teachers transmits a packet to host D on subnet Students. Which Layer 2 and Layer 3 addresses are contained in the PDUs that are transmitted from host B to the router?

Layer 2 destination address = 00-00-0c-94-36-abLayer 2 source address = 00-00-0c-94-36-bbLayer 3 destination address = 172.16.20.200Layer 3 source address = 172.16.10.200