Computer Networks Mid - II, November - 2014

1.A router is ___________ device that routes packets based on their logical addressing
  • Two layer
  • Three layer
  • Four layer
  • None
Answer: B
2.The mobile station that can communicate with two base stations at a time is
  • Hard Hand off
  • Soft Hand off
  • Hand off
  • None
Answer: B
3.A linear SONET network can be
  • Point-to-point network
  • Multipoint
  • Either a or b
  • None
Answer: C
4.__________ is used to record the internet routers that handle the datagram
  • Record route option
  • Strict source route option
  • End-of-option
  • Loose source route option
Answer: A
5.The principle that states routing table is sorted from longest mask to shortest mask is
  • Longest mask matching
  • Hierarchical routing
  • Geographical routing
  • None
Answer: A
6.A ___________ is a connecting device that operates in the physical and data link layers of the internet model.
  • Repeater
  • Bridge
  • Hub
  • Routers
Answer: B
7.The __________ provides routing, traffic management, switching and multiplexing services.
  • Datalink layer
  • Network layer
  • ATM layer
  • Transport layer
Answer: C
8.__________ is implementation of the path vector protocol.
  • RIP
  • OSPF
  • BGP
  • none
Answer: C
9.When too many packets are present in the subnet and performance degrades then it leads to
  • Ingestion
  • Congestion
  • Digestion
  • Diffusion
Answer: B
10.Web pages are written in ___________ language
  • HTML
  • C++
  • C
  • COBOL
Answer: A
11._____________ is a device that operates only in physical layer
Answer: Repeater
12.Each base station in turn is controlled by a switching office called a ___________
Answer: Mobile Switching center
13.A technique called__________ ARP is used to create a subnetting effect
Answer: Proxy
14.___________is group of networks and routers under the authority of a single Administration
Answer: Atonomus System
15.The combination of IP address and a port number is called a ______________
Answer: Socket Address
16.The security service that no party to a contract can later deny having sent it is _____________
Answer: Non-Repudation
17.The AAL is divided into two sub layers ________________ and __________________
Answer: Convergent sub layer, Segmentation And Reassembly(SAR)
18.______________ helps multicast routers create and update a list of loyal members related to a router interface.
Answer: Inter Group Management Protocol
19._______________ is a client/server application that identifies each host on the internet with a unique user friendly name
Answer: Domain Name System (DNS)
20.The length of the TCP segment header is _____________
Answer: 20 Bytes