CCNA Sample Questions

640-801

21. What does the concept route aggregation mean when one talks about using variable subnet masking?
    1. Combining routes to multiple networks into one supernet.
    2. Deleting unusable addresses through the creation of many subnets.
    3. Calculating the available host addresses in the AS.
    4. Reclaiming unused space by means of changing the subnet size.

    Answer :A

22. What PPP protocol provides dynamic addressing, authentication, and multilink?
    1. HDLC
    2. LCP
    3. NCP
    4. X.25

    Answer :B

23. Study the network topology exhibit carefully, in particular the two switches SW1, SW2, and the router RT3. Which statements are true in this scenario? (Select two)
    1. The hosts on the 192.168.1.0 network form one collision domain, and the hosts on the 192.168.2.0 network form a second collision domain.
    2. Each host is in a separate collision domain.
    3. All the devices in both networks will receive a broadcast to 255.255.255.255 sent by host A.
    4. Only the devices in network 192.168.1.0 will receive a broadcast to 255.255.255.255 sent by host A.
    5. All the devices on both networks are members of the same collision domain.

    Answer :D & B

24. What is the purpose of Inverse ARP?
    1. It is used to map a known DLCI to an IP address
    2. It is used to map a known DLCI to a MAC address
    3. It is used to map a known IP address to a MAC address
    4. It is used to map a known MAC address to an IP address
    5. It is used to map a known MAC address to DLCI

    Answer :A

25. You want to configure a router for load balancing across 4 unequal cost paths on your network. Which of the following routing protocols can you use? (Choose two)
    1. RIP v1
    2. RIP v2
    3. OSPF
    4. IGRP
    5. EIGRP
    6. VLSM

    Answer :D & E

26. At what layer data is split into segments
    1. Transport
    2. LAN
    3. Session
    4. Data Link

    Answer :A

27. Host A is communicating with the server. What will be the source MAC address of the frames received by Host A from the server?
    1. The MAC address of Host A.
    2. The MAC address of the server network interface.
    3. The MAC address of router interface E1.
    4. The MAC address of router interface E0.

    Answer :D

28. What switching method examines the destination MAC address as the frame is being received and then begins forwarding the frame prior to receiving the entire frame?
    1. Fragment Free
    2. Store and Forward
    3. Modified Cut Through
    4. Cut Through

    Answer :D