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Computer Networks MCQs

998+ questions with answers

851

Which command is used to reboot a switch?

a shutdown
b copy run start
c exit
d reload
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852

Which protocol does the PPP protocol provide for handling the capabilities of the connection/link on the network?

a LCP
b NCP
c Both LCP and NCP
d TCP
Medium
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853

The PPP protocol _________

a Is designed for simple links which transport packets between two peers
b Is one of the protocols for making an Internet connection over a phone line
c Is designed for simple links which transport packets between two peers and making an Internet connection over a phone
d Is used for sharing bandwidth
Medium
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854

PPP provides the _______ layer in the TCP/IP suite.

a Link
b Network
c Transport
d Application
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855

PPP consists of ________components

a Three (encapsulating, the Domain Name system)
b Three (encapsulating, a link control protocol, NCP)
c Two (a link control protocol, Simple Network Control protocol)
d One (Simple Network Control protocol)
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856

The PPP encapsulation ____________

a Provides for multiplexing of different network-layer protocols
b Requires framing to indicate the beginning and end of the encapsulation
c Establishing, configuring and testing the data-link connection
d Provides interface for handling the capabilities of the connection/link on the network
Medium
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857

A family of network control protocols (NCPs) ____________

a Are a series of independently defined protocols that provide a dynamic
b Are a series of independently-defined protocols that encapsulate
c Are a series of independently defined protocols that provide transparent
d The same as NFS
Medium
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858

Choose the correct statement from the following.

a PPP can terminate the link at any time
b PPP can terminate the link only during the link establishment phase
c PPP can terminate the link during the authentication phase
d PPP can terminate the link during the callback control phase
Medium
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859

The link necessarily begins and ends with this phase. During the ______ phase, the LCP automata will be in INITIAL or STARTING states.

a Link-termination phase
b Link establishment phase
c Authentication phase
d Link dead phase
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860

EIGRP metric is ________

a K-values
b Bandwidth only
c Hop Count
d Delay only
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861

EIGRP can support ____________

a VLSM/subnetting
b Auto summary
c Unequal cast load balancing
d All of the mentioned
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862

EIGRP sends a hello message after every ___________ seconds.

a 5 seconds (LAN), 60 seconds (WAN)
b 5 seconds (LAN), 5 seconds (WAN)
c 15s
d 180s
Medium
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863

Administrative distance for internal EIGRP is ______

a 90
b 170
c 110
d 91
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864

The EIGRP metric values include:

a Delay
b Bandwidth
c MTU
d All of the mentioned
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865

Administrative distance for external EIGRP route is _______

a 90
b 170
c 110
d 100
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866

EIGRP uses the ____________ algorithm for finding shortest path.

a SPF
b DUAL
c Linkstat
d Djikstra’s
Medium
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867

In EIGRP best path is known as the successor, where as backup path is known as __________

a Feasible successor
b Back-up route
c Default route
d There is no backup route in EIGRP
Medium
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868

Traditional LANs run at the speeds of _____________

a 100 to 10000 Mbps
b 100 to 1000 Mbps
c 10 to 100 Mbps
d 10 to 1000 Mbps
Medium
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869

The transmission channels in LAN generally use __________ cables.

a fiber optic
b twisted pair
c unshielded twisted pair
d shielded twisted pair
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870

_______ standard is used by Wireless LAN.

a IEEE 802.3
b IEEE 802.11
c IEEE 802.2
d IEEE 802.5
Medium
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871

_________ is a Wireless LAN technology.

a Public Switched Telephone Network (PSTN)
b Cable Television
c Bluetooth
d Internet Access
Medium
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872

Data Link technology for Local Area Networks (LAN) is _________

a hybrid
b fully connected
c mesh
d token ring
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873

__________ is a type of LAN data transmission.

a VLAN
b Unicast
c Simulcast
d Cablecast
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874

A repeater is a _________ layer device.

a data link
b application
c network
d physical
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875

In a Broadcast transmission __________

a a packet is transmitted from a source to many destinations on the network
b a single packet is transmitted from a source to a destination on the network
c a packet is transmitted from many sources to one destination on the network
d a single packet is copied and sent to all nodes on the network
Medium
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876

___________ device is used for connecting LAN.

a Routers
b Ethernet
c Servers
d Bridge
Medium
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877

Collisions are improbable in _________ networks.

a Token Ring
b Token-passing
c Ethernet
d Hybrid
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878

The diagram below represents ___________ type of data transmission in LAN.

a multicast
b unicast
c broadcast
d cablecast
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879

___________ is one of the resource for network node.

a Hub
b Ethernet
c Modem
d Radio
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880

____________ is considered as a network node and also network security.

a Malware
b Firewall
c Ransomware
d Mobile secure gateway
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881

At the Data Link layer, Bridge acts as an intelligent __________ switch.

a Packet
b Circuit
c Segment
d Frame
Medium
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882

The routing algorithm used by transparent bridge is __________ algorithm.

a Distance Vector Routing
b Backward learning
c Spanning-tree
d Link State Routing
Medium
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883

In bridged networks _________ algorithm is used for bridging token-ring LANs.

a Backward learning
b Source-routing
c Spanning-tree
d Distance Vector Routing
Medium
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884

The transparent bridge learns routing information by a ______ learning process.

a upward
b backward
c forward
d downward
Medium
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885

Which protocol is used by the router to determine the port associated with the destination address?

a Simple Network Management Protocol (SNMP)
b Border Gateway Protocol (BGP)
c Routing Information Protocol (RIP)
d Address Resolution Protocol (ARP)
Medium
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886

A ___________ combines two autonomous networks.

a router
b repeater
c modem
d gateway
Medium
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887

__________ is a routing technique deployed in the Edge Routers.

a Multiprotocol Label Switching (MPLS)
b Fixed weighted
c Round Robin
d Adaptive balancing
Medium
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888

_________ is a communication system that spans through a large area.

a Wide Area Networks (WAN)
b Metropolitan Area Networks (MAN)
c Local Area Networks (LAN)
d Personal Area Network (PAN)
Medium
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889

WAN can be partitioned into two sections from network management perspective. Those are _________ and transmissions between switching offices.

a closed Loop section
b open Loop section
c subscriber loop section
d digital Loop Section
Medium
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890

In Subscriber loop section _____________ forms a part of active links.

a fiber optic
b coaxial cable
c unshielded twisted pair
d shielded twisted pair
Medium
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891

__________ is an example of Wide Area Network (WAN).

a Home Router
b Internet Access
c Cell Networks
d Cable TV Network
Medium
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892

In satellite WAN ___________ protocol is used.

a CDMA (Code Division Multiple Access)
b TDMA (Time Division Multiple Access)
c DSSS (Direct Sequence Spread Spectrum)
d FHSS (Frequency Hopping Spread Spectrum)
Medium
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893

An asynchronous connection uses __________ encapsulation.

a DSL
b PPP
c Frame Relay
d Ethernet
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894

_________ WAN technology requires more bandwidth for transferring voice, video and data.

a PAP (Password Authentication Protocol)
b Frame Relay
c SONET (Synchronous Optical Networking)
d ATM (Asynchronous Transfer Mode)
Medium
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895

Narrow-band LAN technology uses _________ mode of transmission.

a full duplex
b analog
c digital
d half duplex
Medium
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896

In a twisted-pair cable, the gauge of the wire and the type of twist determines the _________

a mode of transmission
b quality of transmission
c frequency of transmission
d channels of transmission
Medium
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897

The method for taking advantage of optical wavelength of transmission, in order to increase capacity of information in an optical transmission medium is known as __________

a Wavelength Division Multiplexing (WDM)
b Time Division Multiplexing (TDM)
c Frequency Division Multiplexing (FDM)
d Code Division Multiplexing (CDM)
Medium
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898

For an IP based protocol, the MPLS label is inserted between which two headers?

a IEEE 802.3 MAC header and Network layer IP header
b IEEE 802.11 MAC header and Transport layer MAC header
c Transport layer IP header and Network layer IP header
d Physical layer MAC header and Data Link layer IP header
Medium
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899

Which of the following uses Bluetooth as a Wireless technology?

a Personal Area Network
b Local Area Network
c Wide Area Network
d Metropolitan Area Network
Medium
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900

__________ uses all its energy in gathering data signals at one particular direction.

a Bidirectional Antenna
b Unidirectional Antenna
c Directional Antenna
d Omnidirectional Antenna
Medium
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