Cisco 640-821 Valid Test : Introduction to Cisco Networking Technologies

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Cisco 640-821 Exam Syllabus Topics:

Cisco Introduction to Cisco Networking Technologies Sample Questions:

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

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

2. Refer to the output of the three router commands shown in the exhibit.A new technician has been told to add a new LAN to the company router. Why has the technician received the error message that is shown following the last command?

A) The command was entered from the wrong prompt.
B) The router does not support LAN interfaces that use Ethernet.
C) The interface type does not exist on this router platform.
D) The interface was already configured.
E) The IOS software loaded on the router is outdated.

3. How does a switch differ from a hub?

A) A switch operates at a lower, more efficient layer of the OSI model.
B) A switch tracks MAC addresses of directly-connected devices.
C) A switch decreases the number of broadcast domains.
D) A switch decreases the number of collision domains.
E) A switch does not induce any latency into the frame transfer time.

4. A router receives a packet on interface 172.16.45.66/26. The source IP of the packet is
172.16.45.126/26 and the destination is 172.16.46.191/26. How will the router handle the packet?

A) The destination is a broadcast address, so the router will not forward the packet.
B) The destination is a host on another subnet, so the router will not forward the packet.
C) The destination is a network address, so the router will forward the packet.
D) The destination is a host on the same subnet, so the router will forward the packet.

5. Refer to the exhibit. HostX is transferring a file to the FTP server. Point A represents the frame as it goes toward the Toronto router. What will the Layer 2 destination address be at this point?

A) aabb.555.2222
B) 192.168.7.17
C) 192.168.1.1
D) abcd.2246.0035
E) abcd.1123.0045

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