How often are BPDUs sent from a layer 2 device?
A. Never
B. Every 2 seconds(CORRECT)
C. Every 10 minutes
D. Every 30 seconds
How many broadcast domains are created when you segment a network with a 12-port switch?
A. 1(CORRECT)
B. 2
C. 5
D. 12
What does the command routerA(config)#line cons 0 allow you to perform next?
A. Set the Telnet password.
B. Shut down the router.
C. Set your console password.(CORRECT)
D. Disable console connections.
Which router command allows you to view the entire contents of all access lists?
A. show all access-lists
B. show access-lists(CORRECT)
C. show ip interface
D. show interface
Which class of IP address has the most host addresses available by default?
A. A(CORRECT)
B. B
C. C
D. A and B
In a network with dozens of switches, how many root bridges would you have?
A. 1 (CORRECT)
B. 2
C. 5
D. 12
What PPP protocol provides dynamic addressing, authentication, and multilink?
A. NCP
B. HDLC
C. LCP (CORRECT)
D. X.25
What is a stub network?
A. A network with more than one exit point.
B. A network with more than one exit and entry point.
C. A network with only one entry and no exit point.
D. A network that has only one entry and exit point(CORRECT)
If your router is facilitating a CSU/DSU, which of the following commands do you need to use to provide
the router with a 64000bps serial link?
A. RouterA(config)#bandwidth 64
B. RouterA(config-if)#bandwidth 64000
C. RouterA(config-if)#clock rate 64
D. RouterA(config-if)#clock rate 64000(CORRECT)
Which one of the following is true regarding VLANs?
A. Two VLANs are configured by default on all Cisco switches.
B. VLANs only work if you have a complete Cisco switched internetwork. No off-brand switches are allowed.
C. You should not have more than 10 switches in the same VTP domain.
D. VTP is used to send VLAN information to switches in a configured VTP domain.(CORRECT)
What does a VLAN do?
A. Acts as the fastest port to all servers.
B. Provides multiple collision domains on one switch port.
C. Breaks up broadcast domains in a layer 2 switch internetwork.(CORRECT)
D. Provides multiple broadcast domains within a single collision domain.
What is the main reason the OSI model was created?
A. To create a layered model larger than the DoD model.
B. So application developers can change only one layer's protocols at a time.(CORRECT)
C. So different networks could communicate.
D. So Cisco could use the model.
How many collision domains are created when you segment a network with a 12-port switch?
A. 1
B. 2
C. 5
D. 12 (CORRECT)
What command will display the line, protocol, DLCI, and LMI information of an interface?
A. sh pvc
B. show interface (CORRECT)
C. show frame-relay pvc
D. show run
Which protocol does Ping use?
A. TCP
B. ARP
C. ICMP (CORRECT)
D. BootP
Which command is used to upgrade an IOS on a Cisco router?
A. copy tftp run
B. copy tftp start
C. config net
D. copy tftp flash (CORRECT)
If you wanted to delete the configuration stored in NVRAM, what would you type?
A. erase startup(CORRECT)
B. erase nvram
C. delete nvram
D. erase running
What protocols are used to configure trunking on a switch?
VLAN Trunking Protocol
VLAN
802.1Q
ISL
A. 1 and 2
B. 3 and 4(CORRECT)
C. 1 only
D. 2 only
COMPUTER NETWORK KNOWLEDGE
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