Basic Networking MCQ Questions And Answers

Basic Networking MCQ Questions. MCQ on Basics of Networking, Router, Switches, LAN technologies, etc. 


Basic Networking MCQ


What protocols are used to configure trunking on a switch ??

1. VLAN Trunking Protocol
3. 802.1Q
4. ISL

a. 1 and 2
b. 3 and 4
c. 1 only
d. 2 only


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


If you wanted to delete the configuration stored in NVRAM, what would you type ??

a. erase startup
b. erase nvram
c. delete nvram
d. erase running


What command will display the line, protocol, DLCI, and LMI information of an interface ??

a. sh pvc
b. show interface
c. show frame-relay pvc
d. show run


Which protocol does Ping use ??

a. TCP
b. ARP
d. BootP


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
d. Provides multiple broadcast domains within a single collision domain


How many collision domains are created when you segment a network with a 12-port switch ??

a. 1
b. 2
c. 5
d. 12


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
c. So different networks could communicate
d. So Cisco could use the model


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


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



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 6400


In a network with dozens of switches, how many root bridges would you have ??

a. 1
b. 2
c. 5
d. 12


What PPP protocol provides dynamic addressing, authentication, and multilink ??

a. NCP
c. LCP
d. X.25


How long is an IPv6 address ??

a. 32 bits
b. 128 bytes
c. 64 bits
d. 128 bits


Which protocol does DHCP use at the Transport layer ??

a. IP
b. TCP
c. UDP
d. ARP


What flavor of Network Address Translation can be used to have one IP address allow many users to connect to the global Internet ??

a. NAT
b. Static
c. Dynamic
d. PAT


Which command is used to determine if an IP access list is enabled on a particular interface ??

a. show access-lists
b. show interface
c. show IP interface
d. show interface access-lists


What are the two main types of access control lists (ACLs) ??
1 Standard
3 Extended
4 Specialized

a. 1 and 3
b. 2 and 4
c. 3 and 4
d. 1 and 2


Where is a hub specified in the OSI model ??

a. Session layer
b. Physical layer
c. Data Link layer
d. Application layer


What command is used to create a backup configuration ??

a. copy running backup
b. copy running-config startup-config
c. config mem
d. wr mem


Basic Networking MCQ


What does the passive command provide to dynamic routing protocols ??

a. Stops an interface from sending or receiving periodic dynamic updates
b. Stops an interface from sending periodic dynamic updates but not from receiving updates
c. Stops the router from receiving any dynamic updates
d. Stops the router from sending any dynamic updates


You have 10 users plugged into a hub running 10Mbps half-duplex. There is a server connected to the switch running 10Mbps half-duplex as well. How much bandwidth does each host have to the server ??

a. 100 kbps
b. 1 Mbps
c. 2 Mbps
d. 10 Mbps


Which protocol is used to send a destination network unknown message back to originating hosts ??

a. TCP
b. ARP
d. BootP


Which WLAN IEEE specification allows up to 54Mbps at 2.4GHz ??

a. A
b. B
c. G
d. N


How often are BPDUs sent from a layer 2 device ??

a. Never
b. Every 2 seconds
c. Every 10 minutes
d. Every 30 seconds


Which of the following is the valid host range for the subnet on which the IP address resides ??



How many broadcast domains are created when you segment a network with a 12-port switch ??

a. 1
b. 2
c. 5
d. 12


To back up an IOS, what command will you use ??

a. backup IOS disk
b. copy ios TFTP
c. copy TFTP flash
d. copy flash TFTP


What does the command router A(config)#line cons 0 allow you to perform next ??

a. Set the Telnet password
b. Shut down the router
c. Set your console password
d. Disable console connections


What protocol does PPP use to identify the Network layer protocol ??

a. NCP
d. LCP


Basic Networking MCQ


Which router command allows you to view the entire contents of all access lists ??

a. show all access-lists
b. show access-lists
c. show ip interface
d. show interface


Which of the following commands will allow you to set your Telnet password on a Cisco router ??

a. line telnet 0 4
b. line aux 0 4
c. line vty 0 4
d. line con 0


Which class of IP address has the most host addresses available by default ??

a. A
b. B
c. C
d. A and B



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