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Home » Engineering » Computer Science » Aptitude Test - 6
1.The functionalities of the presentation layer include ?
A. Data compression
B. Data encryption
C. Data description
D. Data compression
2.Delimiting and synchronization of data exchange is provided by ?
A. Link layer
B. Transport layer
C. Session layer
D. Link layer
3.In OSI model, when data is sent from device A to device B, the 5th layer to receive data at B is ?
A. Session layer
B. Link layer
C. Application layer
D. Session layer
4.In TCP IP Model, when data is sent from device A to device B, the 5th layer to receive data at B is ?
A. Application layer
B. Transport layer
C. Link layer
D. Application layer
5. In the OSI model, as a data packet moves from the lower to the upper layers, headers are ?
A. Added
B. Removed
C. Rearranged
D. Added
6.Which of the following statements can be associated with OSI model ?
A. A structured way to discuss and easier update system components
B. One layer may duplicate lower layer functionality
C. Functionality at one layer no way requires information from another layer
D. A structured way to discuss and easier update system components
7.What is internet ?
A. a single network
B. A vast collection of different networks
C. Interconnection of local area networks
D. a single network
8.To join the internet, the computer has to be connected to a ?
A. Internet architecture board
B. Internet society
C. Internet service provider
D. Internet architecture board
9.Internet access by transmitting digital data over the wires of a local telephone network is provided by ?
A. Leased line
B. Digital subscriber line
C. Digital signal line
D. Leased line
10.ISP exchanges internet traffic between their networks by ?
A. Isp end point
B. Internet end point
C. Subscriber end point
D. Isp end point
11.Which of the following protocols is used in the internet ?
A. DNS
B. DHCP
C. HTTP
D. DNS
12.The size of an IP address in IPv6 is ?
A. 32 bits
B. 64 bits
C. 128 bits
D. 32 bits
13.Internet works on ?
A. Packet switching
B. Circuit switching
C. Data switching
D. Packet switching
14.Which one of the following is not an application layer protocol used in internet ?
A. Local procedure call
B. Resource reservation protocol
C. Internet relay chat
D. Local procedure call
15.Which protocol assigns IP address to the client connected in the internet ?
A. DHCP
B. IP
C. RPC
D. DHCP
16.Which one of the following is not used in media access control ?
A. Ethernet
B. Digital subscriber line
C. Fiber distributed data interface
D. Ethernet
17.When collection of various computers seems a single coherent system to its client, then it is called ?
A. Computer network
B. Distributed system
C. Networking system
D. Computer network
18.Which of the following computer networks is built on the top of another network ?
A. Prior network
B. Chief network
C. Prime network
D. Prior network
19.In computer network nodes are ?
A. The computer that originates the data
B. The computer that routes the data
C. The computer that terminates the data
D. The computer that originates the data
20.Communication channel is shared by all the machines on the network in ?
A. Broadcast network
B. Unicast network
C. Multicast network
D. Broadcast network
21.Bluetooth is an example of ?
A. Wide area network
B. Virtual private network
C. Local area network
D. Wide area network
22.A is a device that forwards packets between networks by processing the routing information included in the packet ?
A. Hub
B. Router
C. Firewall
D. Hub
23.A list of protocols used by a system, one protocol per layer, is called ?
A. Protocol architecture
B. Protocol stack
C. Protocol suite
D. Protocol architecture
24.Network congestion occurs ?
A. In case of traffic overloading
B. When a system terminates
C. When connection between two nodes terminates
D. In case of traffic overloading
25.Which of the following networks extends a private network across public networks ?
A. Local area network
B. Virtual private network
C. Enterprise private network
D. Local area network
26.What is multimedia file ?
A. Is same as any other regular file
B. Must be accessed at specific rate
C. Stored on remote server can not be delivered to its client
D. Is same as any other regular file
27. In which type of streaming multimedia file is delivered to the client, but not shared ?
A. Progressive download
B. Compression
C. Real-time streaming
D. Progressive download
28.Which one of the following is the characteristic of a multimedia system ?
A. High storage
B. High data rates
C. Both high storage and high data rates
D. High storage
29.The delay that occur during the playback of a stream is called ?
A. Stream delay
B. Playback delay
C. Jitter
D. Stream delay
30.Which algorithm can be optimized to meet the timing deadlines and rate requirements of continuous media ?
A. Earliest-Deadline-First scheduling
B. SCAN-EDF scheduling
C. Both A & B
D. Earliest-Deadline-First scheduling
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