Cisco 640-821 : Introduction to Cisco Networking Technologies

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Cisco 640-821 Exam Syllabus Topics:

Cisco Introduction to Cisco Networking Technologies Sample Questions:

Question 1

During the boot sequence, a 2600 series router needs to locate and load an operating system. What is the default order the router uses to find an operating system?

A. Flash, ROM, TFTP server
B. ROM, TFTP server, Flash
C. Flash, TFTP server, ROM
D. Flash, NVRAM, TFTP server
E. Flash, TFTP server, RAM

Question 2

Refer to the exhibit. A person is trying to send a file from a host on Network A of the JAX
Company to a server on Network Z of the XYZ Company. The file transfer fails. The host on Network A can communicate with other hosts on Network A.
Which command, issued
from router RTA, would be the most useful for troubleshooting this problem?

A. show history
B. show flash:
C. show controllers serial
D. show interfaces
E. show version

Question 3

Which OSI layer header contains the address of a destination host that is on another network?

A. physical
B. data link
C. network
D. transport
E. session
F. application

Question 4

Refer to the topology and MAC address table shown in the exhibit. Host A sends a data frame to host D.
What will the switch do when it receives the frame from host A?

A. The switch will add the source address and port to the MAC address table and forward the frame to host D.
B. The switch will flood the frame out of all ports except for port Fa0/3.
C. The switch will add the destination address of the frame to the MAC address table and forward the frame to host
D. The switch will discard the frame and send an error message back to host A.

Question 5

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

Solutions: