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4

Which OSI model layer provides for encryption and decryption of data?

A. Data-link

B. Transport

C. Presentation

D. Application

Correct Answer :

C. Presentation


Related Questions

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4

Thinnet coaxial cable uses what type of connector?

A. RJ-45

B. AUI

C. MSAU

D. BNC

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4

Which of the following protocols is described in RFC 793?

A. Address Resolution Protocol (ARP)

B. Transmission Control Protocol (TCP)

C. Bootstrap Protocol (BOOTP)

D. User Datagram Protocol (UDP)

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4

If the organization allocates 10 bits as subnet number, to identify a physical network, then the organization can have at the most……………. networks and each of these networks that can support only…………………...hosts.

A. 1022 networks, 62 hosts.

B. 62 networks, 1022 hosts.

C. 4094 networks, 14 hosts.

D. 14 networks, 4094 hosts.

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4

____________ developed to provide a loop-free method of exchanging routing information
between autonomous systems.

A. Enhanced Interior Gateway Routing Protocol (EIGRP)

B. User Datagram Protocol (UDP)

C. Border Gateway Protocol (BGP)

D. User Datagram Protocol (UDP)

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4

Network administrator checks whether all the devices connected to the end-to-end path
are _________-enabled.

A. Any cast

B. Broadcast

C. Unicast

D. Multicast

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4

In distance vector routing an active router sends out information ………………………….

A. Only when there is a change in its table

B. Only when a new host is added

C. At regularly scheduled intervals

D. Only when a new network is added

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4

What does a patch cable connect to within an Ethernet network?

A. The patch panel to the hub

B. The patch panel to the wall jack

C. The wall jack to the computer

D. The NIC directly to another computer's NIC

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4

ICMP messages require ………………. levels of encapsulation

A. One

B. Two

C. Three

D. Four

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4

What is the default subnet mask for a class B network?

A. 255.0.0.0

B. 255.255.0.0

C. 255.255.255.0

D. 255.255.192.0

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4

In ________ routing, the tunnel creates a bridge through areas that do not support
multicast traffic.

A. Internet

B. MBONE

C. Border Gateway Protocol

D. Multicast OSPF

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4

In an active mode if any FTP client sends the port command "PORT 192,168,0,1,4,1" then
what will be the interpretation of port field?

A. 1024

B. 1025

C. 1023

D. 227

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4

You have a network card with the connector in question 43, and it also has a 15 pin female connector, the pins being in two rows. What type of card is it?

A. ethernet

B. token ring

C. arcnet

D. dlc

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4

You're configuring a dial-up connection to an ISP. Which of the following protocols is used?

A. PPTP

B. PPP

C. VPN

D. IPSec

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4

Which of the following are not the standard representations defined by Telnet protocol?

A. IP and AO

B. YTA and WAY

C. EC and EL

D. SYNCH

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4

In the IP address 129.2.8.9, what does 129.2 specify?

A. Protocol address

B. Router address

C. Host number

D. Network number

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4

Which of these is a feature of hubs?

A. Hubs amplify the incoming signal.

B. Hubs understand frames, packets or headers

C. All lines coming into a Hub must operate at a same speed.

D. all of these

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4

In an authentication using symmetric keys, if 10 people need to communicate, we need _______ keys.

A. 90

B. 10

C. 20

D. 45

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4

SMTP protocol is responsible for sending email across the Internet

A. True.

B. False.

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4

In Secure Electronic Transaction, the description of the purchase and cost is contained in
________ message.

A. Authorization

B. Purchase order

C. Inquiry

D. Capture

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4

Class C network address class supports 65,534 hosts.

A. True.

B. False.

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4

In an autonomous system with n areas, how many areas are connected to the backbone?

A. 1

B. N

C. N+1

D. N-1

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4

Which of the following headers does a router look at to find how to route a data packet?

A. Ethernet frame header

B. MAC address

C. Application header

D. IP header

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4

FDDI operates on 100 Mbps.

A. True.

B. False.

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4

A financial institution that issues the card to the purchaser is ________.

A. Merchant

B. Issuer

C. Acquirer payment gateway

D. Cardholder

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4

Which class does the IP address 202.119.22.31 belong to?

A. Class A

B. Class B

C. Class C

D. APIPA

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4

What is attenuation?

A. cable noise

B. cable shortage

C. loss of signal strength

D. unwanted signals on the network

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4

Your network has gotten a single class C address but has 300 computers. How can you connect them to the Internet?

A. Use IPX.

B. Implement NAT.

C. Use DHCP.

D. Use DNS.

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4

_________ is a type of domain name queries.

A. Linear

B. Iterative

C. Grouped

D. Parallel

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4

What is the code used for Interpret As Command (IAC)?

A. 253

B. 255

C. 240

D. 241

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4

Which of the following protocols is not routable?

A. TCP/IP

B. IPX/SPX

C. AppleTalk

D. NetBEUI