CCNA1 – Chapter 6

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Which characteristic of the network layer in the OSI model allows carrying packets for multiple types of communications among many hosts?

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

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

does not require a dedicated end-to-end connection operates independently of the network media

When a connectionless protocol is in use at a lower layer of the OSI model, how is missing data detected and retransmitted if necessary?

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

Which field in the IPv4 header is used to prevent a packet from traversing a network endlessly?


What IPv4 header field identifies the upper layer protocol carried in the packet?


What is one advantage that the IPv6 simplified header offers over IPv4?

efficient packet handling

Refer to the exhibit. Which route from the PC1 routing table will be used to reach PC2?

Network Destination Netmask Gateway Onlink Interface Metric 281

Refer to the exhibit. R1 receives a packet destined for the IP address Out which interface will R1 forward the packet?

Refer to the exhibit. R1 receives a packet destined for the IP address Out which interface will R1 forward the packet?

What type of route is indicated by the code C in an IPv4 routing table on a Cisco router?

directly connected route

What routing table entry has a next hop address associated with a destination network?

remote routes

Which statement describes a hardware feature of a Cisco 1941 router that has the default hardware configuration?

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

Following default settings, what is the next step in the router boot sequence after the IOS loads from flash?

Locate and load the startup-config file from NVRAM.

What are two types of router interfaces? (Choose two.)


Which two pieces of information are in the RAM of a Cisco router during normal operation? (Choose two.)

Cisco IOS IP routing table

A router boots and enters setup mode. What is the reason for this?

The configuration file is missing from NVRAM.

What is the purpose of the startup configuration file on a Cisco router?

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

Which three commands are used to set up secure access to a router through a connection to the console interface? (Choose three.)

line console 0 login password cisco

Which characteristic describes an IPv6 enhancement over IPv4?​

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

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?​

SW1 does not have a default gateway configured.

Match the command with the device mode at which the command is entered. (Not all options are used.)

R1(config)# -> service password-encrytion R1> -> enable – not scored – R1# -> copy running-config startup-config R1(config-line)# -> login R1(config-if)# -> ip address

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