Cisco CCNA 640-802 Real Exam Questions

The 640-802 CCNA is the composite exam associated with the Cisco Certified Network Associate certification. Candidates can prepare for this exam by taking the Interconnecting Cisco Networking Devices Part 1 (ICND1) v1.0 and the Interconnecting Cisco Networking Devices Part 2 (ICND2) v1.0 courses. This exam tests a candidate’s knowledge and skills required to install, operate, and troubleshoot a small to medium size enterprise branch network. The topics include connecting to a WAN; implementing network security; network types; network media; routing and switching fundamentals; the TCP/IP and OSI models; IP addressing; WAN technologies; operating and configuring IOS devices; extending switched networks with VLANs; determining IP routes; managing IP traffic with access lists; establishing point-to-point connections; and establishing Frame Relay connections.

1: What are some of the advantages of using a router to segment the network? (Choose two.)

A.Filtering can occur based on Layer 3 information.
B.Broadcasts are eliminated.
C.Routers generally cost less than switches.
D.Broadcasts are not forwarded across the router.
E.Adding a router to the network decreases latency.
Correct Answers: A D

2: The network administrator has discovered that the power supply has failed on a switch in the company LAN and that the switch has stopped functioning. It has been replaced with a Cisco Catalyst 2950 series switch. What must be done to ensure that this new switch becomes the root bridge on the network?

A.Lower the bridge priority number.
B.Change the MAC address of the switch.
C.Increase the VTP revision number for the domain.
D.Lower the root path cost on the switch ports.
E.Assign the switch an IP address with the lowest value.
Correct Answers: A

3: A network administrator wants to ensure that only the server can connect to port Fa0/1 on a Catalyst switch. The server is plugged into the switch Fa0/1 port and the network administrator is about to bring the server online. What can the administrator do to ensure that only the MAC address of the server is allowed by switch port Fa0/1? (Choose two.)

A.Configure port Fa0/1 to accept connections only from the static IP address of the server.
B.Employ a proprietary connector type on Fa0/1 that is incompatible with other host connectors.
C.Configure the MAC address of the server as a static entry associated with port Fa0/1.
D.Bind the IP address of the server to its MAC address on the switch to prevent other hosts from spoofing the server IP address.
E.Configure port security on Fa0/1 to reject traffic with a source MAC address other than that of the server.
F.Configure an access list on the switch to deny server traffic from entering any port other than Fa0/1.
Correct Answers: C E

4: A network interface port has collision detection and carrier sensing enabled on a shared twisted pair network. From this statement, what is known about the network interface port?

A.This is a port on a network interface card in a PC.
B.This is a 100 Mb/s switch port.
C.This is a 10 Mb/s switch port.
D.This is an Ethernet port operating at full duplex.
E.This is an Ethernet port operating at half duplex.
Correct Answers: E

5: Which IP address can be assigned to an Internet interface?

Correct Answers: B

6: What will happen if a private IP address is assigned to a public interface connected to an ISP?

A.Addresses in a private range will be not routed on the Internet backbone.
B.Only the ISP router will have the capability to access the public network.
C.The NAT process will be used to translate this address in a valid IP address.
D.Several automated methods will be necessary on the private network.
E.A conflict of IP addresses happens, because other public routers can use the same range.
Correct Answers: A

7: When is it necessary to use a public IP address on a routing interface?

A.Connect a router on a local network.
B.Connect a router to another router.
C.Allow distribution of routes between networks.
D.Translate a private IP address.
E.Connect a network to the Internet.
Correct Answers: E

8: In an Ethernet network, under what two scenarios can devices transmit? (Choose two.)

A.when they receive a special token
B.when there is a carrier
C.when they detect no other devices are sending
D.when the medium is idle
E.when the server grants access
Correct Answers: C D

9: Which statement about RIPng is true?

A.RIPng allows for routes with up to 30 hops.
B.RIPng is enabled on each interface separately.
C.RIPng uses broadcasts to exchange routes.
D.There can be only one RIPng process per router.
Correct Answers: B

10: A network admin wants to know every hop the packets take when he accesses Which command is the most appropriate to use?

Correct Answers: D

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