Cisco 640-802

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Cisco Certified Network Associate(CCNA) Sample Questions:

1. Refer to the exhibit.

The VLAN configuration of S1 is not being updated in this VTP-enabled environment. The VTP and uplink port configuration for each switch are displayed. Which two command sets, if issued, resolve this failure and allow VTP to operate as expected?

A) S2(config)#interface FastEthernet 0/24 S2(config-if)#switchport mode access S2(config-if)end
B) S1(config)#vtp mode client
C) S2(config)#vtp mode transparent
D) S1(config)#interface FastEthernet 0/24 S1(config-if)#switchport mode trunk S2(config-if)#end
E) S2(config)#vtp mode client

2. Refer to the exhibit.

The serial0/0 interface of the Tampa router connects to the Orlando router. Which two statements are true about the connection between these two routers?

A) Data exchanges between the Orlando and Tampa routers are encrypted.
B) The link uses a two-way handshake for authentication.
C) The link uses a three-way handshake for authentication.
D) Routing updates exchanged between the Orlando and Tampa routers are authenticated.
E) The only device with which the Tampa router will negotiate a data link is the Orlando router.

3. The show interfaces serial 0/0 command resulted in the following output. Which three are possible reasons for this interface status? (Choose three.)

What are possible causes for this interface status? (Choose three.)

A) The clock rate is not set.
B) No keep-alive messages are received.
C) No loopback address is set.
D) No cable is attached to the interface.
E) The interface is shut down.
F) There is a mismatch in the encapsulation type.

4. Which command will show the MAC addresses of stations connected to switch ports?

A) show table
B) show switchport
C) show mac-address
D) show arp

5. Which two statements best describe the wireless security standard that is defined by WPA? (Choose two.)

A) It requires use of an open authentication method.
B) It specifies the use of dynamic encryption keys that change each time a client establishes a connection.
C) It requires that all access points and wireless devices use the same encryption key.
D) It specifies use of a static encryption key that must be changed frequently to enhance security.
E) It includes authentication by PSK.

Solutions: