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Cisco 640-821 Exam Syllabus Topics:

Cisco Introduction to Cisco Networking Technologies Sample Questions:

Question #1
What set of router configuration commands causes the message shown in the exhibit?

A. router(config)# line console 0
router(config-line)# service password-encryption
router(config-line)# login
B. router(config)# line console 0
router(config-line)# enable secret cisco
router(config-line)# login
C. router(config)# line console 0
router(config-line)# password cisco
router(config-line)# login
D. router(config)# line console 0
router(config-line)# enable password cisco
router(config-line)# login
E. router(config)# line console 0
router(config-line)# enable password cisco
router(config-line)# logging synchronous

Question #2
A network administrator is connecting PC hosts A and B directly through their Ethernet interfaces as shown in the graphic. Ping attempts between the hosts are unsuccessful.
What can be done to provide connectivity between the hosts? (Choose two.)

A. The hosts must be reconfigured to use private IP addresses for direct connections of this type.
B. A default gateway needs to be set on each host.
C. The subnet masks should be set to 255.255.255.192.
D. A crossover cable should be used in place of the straight-through cable.
E. A rollover cable should be used in place of the straight-through cable
F. The subnet masks should be set to 255.255.255.0.

Question #3
The following commands are entered on the router:
Burbank(config)# enable secret fortress
Burbank(config)# line con 0
Burbank(config-line)# login
Burbank(config-line)# password n0way1n
Burbank(config-line)# exit
Burbank(config)# service password-encryption
What is the purpose of the last command entered?

A. to prevent the vty, console, and enable passwords from being displayed in plain text in the configuration files
B. to require the user to enter an encrypted password during the login process
C. to encrypt the enable secret password
D. to provide login encryption services between hosts attached to the router

Question #4
What data structure is described in the graphic?

A. Token Ring frame
B. FDDI frame
C. UDP datagram
D. IP datagram
E. Ethernet frame
F. TCP segment

Question #5
Refer to the graphic. A Cisco router and a Catalyst switch are connected as shown. The technician is working on a computer that is connected to the management console of the switch. In order to configure the default gateway for the switch, the technician needs to learn the IP address of the attached router interface. Which IOS command will provide this information in the absence of Layer 3 connectivity?

A. ping switch_ip_address
B. show cdp neighbors detail
C. show ip neighbors
D. ping router_ip_address
E. show dhcp-config
F. show ip rarp

Solutions: