CCNA MOD 1

What are three ranges of IP addresses that are reserved for internal private use?

10.0.0.0/8 172.16.0.0/12 192.168.0.0/16

Which subnet would include the address 192.168.1.96? 192.168.1.64 /26 192.168.1.32 /27 192.168.1..32/28 192.168.1.64 /29

192.168.1.64 /26

What is the most compressed representation of the IPV6 address: 2001:0000:0000:abcd:0000:0000:0000:0001?

2001:0:0:abcd::1

On which switch interface would an administrator configure an IP address so that the switch can be managed remotely?

VLAN

what method is used to manage contention based access on a wireless network?

CSMA/CD

What are three primary functions provided by the layer 2 data encapsulation?

Data link layer addressing detection of errors through CRC calculations Delimiting groups of bits into frames

Which two OSI model layers have the same functionality as two layers of the TCP/IP model?

Network Transport

What is the benefit of using cloud computing in network?

Network capabilities are extended without requiring investment in new infrastructure, personnel,, or software.

A network administrator is troubleshooting connectivity issues on a server. Using a tester, the administrator notices the signals generated by the server NIC are distorted and not usable. In which layer of the OSI model is the error categorized?

Physical Layer

what are two services provided by the OSI network layer?

Routing packets towards the destination encapsulating PDUs from the transport layer

Which name is assigned to the transport layer PDU?

Segment

What is a characteristic of a fault tolerant network?

a network that recovers quickly when a failure occurs and depends on redundancy to limit the impact of a failure

What are three characteristics of multicast transmission?

a single packet can be sent to multiple hosts Multiple transmission can be used by routers to exchange routing information routers will not forward multicast addresses in the range of 224.0.0.0 to 224.0.0.255

A network team is comparing physical WAN topologies for connecting remote sites to a headquarters building which topology provides high availability and connects some but not all remote sites?

partial mesh

which range of link-local addresses can be assigned to an ipv6-enabled interface?

FE80::/10

What purpose does NAT64 serve in IPV6?

it convert IPV6 packets into IPV4 packets

What are two characteristics of fiber-optic cable?

it is not affected by EMI or RFI it is more expensive that UTP cabling is

What are two functions of NVRAM?

to retain contents when power is removed to store the startup configuration file

What is the dotted decimal representation of the IPV4 address: 11001011.00000000.01110001.11010011

203.0.113.211

a site administrator has been told that a particular network at the site must accommodate 126 hosts. Which subnet mask would be used that contains the required number of host bits?

255.255.255.128

how many valid host addresses are available on an ipv4 subnet that is configured with a /26 mask?

62

What are two benefits of using a layered network model?

It assists in protocol design. It prevents technology in one layer from affecting other layers.

What is an advantage to using a protocol that is defined by an open standard?

It encourages competition and promotes choices.

What is the function of the shell in an OS?

It interfaces between the users and the kernel

What is a characteristic of the LLC sublayer?

It places information in the frame allowing multiple layer 3 protocols to use the same network interface and media.

Which framer forwarding method receives the entire frame and performs a CRC check to detect errors before forwarding the frame?

Store and forward switching

What protocol is responsible for controlling the size of segments and the rate at which segments are exchanged between a web client and a web server?

TCP

A network technician is attempting to configure an interface by entering the following command: SanJose(config)# ip address 192.168.2.1 255.255.255.0 The command is rejected by the device. What is the reason for this?

The command is being entered from the wrong mode of operation.

which statement is true about variable length subnet masking?

The size of each subnet may be different, depending on requirements?

Which connection provides a secure CLI session with encryption to a cisco switch?

an SSH connection

What is a characteristic of UTP cabling?

cancellation

what addresses are mapped by ARP?

destination MAC address to a Destination IPV4 address

What will a host on an Ethernet network do if it receives a frame with a destination MAC address that does not match its own MAC address?

discard the frame

A network administrator is measuring the transfer of bits across the company backbone for a mission critical financial application. The administrator notices that the network throughput appears lower than expected. Which three factors could influence the differences in throughput?

the amount of traffic that is currently crossing the network The type of traffic that is currently crossing the network the latency that is created by the number of network devices that the data is crossing

A user opens three browsers on the same PC to access www.cisco.com to search for cert course information. The cisco web server sends a datagram as a reply to the request from one of the web browsers. Which information is used by the TCP/IP protocol stack in the PC to identify which of the three web browsers should receive the reply?

the destination port number

What are two ways that TCP uses the sequence numbers in a segment?

to identify missing segments at the destination to reassemble the segments at the remote location

An administrator uses the Ctrl-Shift-6 key combination on a switch after issuing the ping command. What is the purpose of using these keystrokes.

to interrupt the ping process