Computer networking Ch10 Quiz

Why is NAT not needed in IPv6?

Any host or user can get a public IPv6 network address because the number of available IPv6 addresses is extremely large.

What will be the response from the router after the command, "router(config)# hostname GaspareRouter" is entered?

GaspareRouter(config)#

Within a production network, what is the purpose of configuring a switch with a default gateway address? (3)

Hosts that are connected to the switch can use the switch default gateway address to forward packets to a remote destination. A switch must have a default gateway to be accessible by Telnet and SSH. The default gateway address is used to forward packets originating from the switch to remote networks.

An administrator is configuring a new router to permit out-of-band management access. Which set of commands will allow the required login using a password of cisco?

Router (config)# line console 0 Router (Config-line)#password cisco Router(config-line)#login

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

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

Which CLI mode allows users to access all device commands, such as those used for configuration, management, and troubleshooting?

global configuration mode

What are two services provided by the OSI network layer?

routing packets toward the destination encapsulating PDUs from the transport layer

Which characteristic describes the default gateway of a host computer?

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

What is stored in the NVRAM of a Cisco router?

the startup configuration

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

Refer to the exhibit. Match the packets with their destination IP address to the exiting interfaces on the router.

Packets with destination of 172.17.6.15 - FaEt0/0 Packets with destination of 172.17.10.5 - FaEt 1/1 Packets with destination of 172.17.12.10 - FaEt 1/0 Packets with destination of 172.17.14.8 - FaEtf 0/1 Packets with destination of 172.17.8.20 - Serial 0/0/0

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

Time-to-Live

Which command is used to encrypt all passwords in a router configuration file?

service password-encryption

Which statement describes a feature of the IP protocol?

IP relies on upper layer services to handle situations of missing or out-of-order packets.

Which statement regarding the service password-encryption command is true?

As soon as the command is entered, all currently set passwords formerly displayed in plain text are encrypted

A computer can access devices on the same network but cannot access devices on other networks. What is the probable cause of this problem?

The computer has an invalid default gateway address.

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

The configuration file is missing from NVRAM.

Company policy requires using the most secure method to safeguard access to the privileged exec and configuration mode on the routers. The privileged exec password is jhGF74YT#kjjh!. Which of the following router commands achieves the goal of providing the highest level of security?

enable secret jhGF74YT#kjjh!

A technician is configuring a router to allow for all forms of management access. As part of each different type of access, the technician is trying to type the command login. Which configuration mode should be entered to do this task?

global configuration mode

Which command can be used on a Cisco router to display all interfaces, the IPv4 address assigned, and the current status?

show ip interface brief