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GK One-Line Question & Answer

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Computer Networks → Introduction to Computer Networks 2

Which is also known as a connectionless protocol for a packet-switching network that uses the Datagram approach?
IPV4
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In the sending computer, UDP sends a data unit to the _______ layer.
IP
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Computer Networks → Types of Networks 2

Which switch is a multistage switch with micro switches at each stage that route the packets based on the output port represented as a binary string?
Banyan switch
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Both UDP and TCP are _______ layer protocols.
transportation
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Computer Networks → Network Topologies 2

In Address Resolution Protocol (ARP), a packet is encapsulated directly into a
Data link Frame
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Which of the following functions does UDP perform?
process-to-process communication
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Computer Networks → OSI Reference Model 2

Subnetting is actually
sub division of networks
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When the IP layer of a receiving host receives a datagram, _______.
a transport layer protocol takes over
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Computer Networks → TCP/IP Model 2

Packets in IPv4 layer are called
datagrams
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UDP needs the _______ address to deliver the user datagram to the correct application process.
port
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Computer Networks → Physical Layer 2

Transport layer protocols are useful for ensuring ______________ delivery.
H-2-H
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A port address in UDP is _______bits long.
16
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Computer Networks → Data Link Layer 2

_______________is a reliable delivery mechanism.
TCP
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Which of the following does UDP guarantee?
none of the above
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Computer Networks → Network Layer 2

Transport layer is _____________ the data link layer.
Above
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Message _______ means that the receiver is ensured that the message is coming from the intended sender, not an imposter.
authentication
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Computer Networks → Transport Layer 2

When a packet is lost in transit, it should be handled by _____________.
Sequence control
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_________ means that a sender must not be able to deny sending a message that he sent.
Non-repudiation
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Computer Networks → Session Layer 2

Internet is
a worldwide interconnected network of computers which use a common protocol
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________ means to prove the identity of the entity that tries to access the system's resources.
Entity authentication
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Computer Networks → Presentation Layer 2

World Wide Web
a collection of linked information residing on computers connected by the internet
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A(n) _________ can be used to preserve the integrity of a document or a message.
message digest
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Computer Networks → Application Layer 2

HTML tags define
Presentation of specified elements of a document
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A(n) ________function creates a message digest out of a message.
hash
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Computer Networks → IP Addressing 2

One of the responsibilities of the transport layer protocol is to create a ______ communication.
process-to-process
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A hash function must meet ________ criteria.
three
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Computer Networks → Subnetting 2

UDP is called a ________________transport protocol.
connectionless, unreliable
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Challenge-response authentication can be done using ________.
all of the above
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Computer Networks → Routing Algorithms 2

UDP does not add anything to the services of IP except for providing _______ communication.
process-to-process
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A(n) _____ is a trusted third party that assigns a symmetric key to two parties.
KDC
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Computer Networks → Switching Techniques 2

UDP is an acronym for _______.
User Datagram Protocol
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The _____________ translates internet domain and host names to IP address.
domain name system
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Computer Networks → DNS 2

Although there are several ways to achieve process-to-process communication, the most common is through the __________ paradigm.
client-server
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Which one of the following allows a user at one site to establish a connection to another site and then pass keystrokes from local host to remote host?
telnet
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Computer Networks → HTTP and HTTPS 2

The local host and the remote host are defined using IP addresses. To define the processes, we need second identifiers called ____________.
port addresses
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Application layer protocol defines
all of the above
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Computer Networks → FTP and SMTP 2

The ports ranging from 49,152 to 65,535 can be used as temporary or private port numbers. They are called the ________ ports.
dynamic
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Which one of the following protocol delivers/stores mail to reciever server?
simple mail transfer protocol
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Computer Networks → Wireless Networks 2

In the sending computer, UDP receives a data unit from the _______ layer.
application
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Which one of the following is an internet standard protocol for managing devices on IP network?
simple network management protocol
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