Filters
Question type
Study Flashcards

Establishing a logical connection(or handshaking) between two computers requires the exchange of __________ messages.


A) 0
B) 1
C) 2
D) 3
E) 5

Correct Answer

verifed

verified

Choose a CORRECT statement on the flag field bit of the TCP segment.


A) The ACK bit is used to initiate a session.
B) The SYN bit is used to acknowledge packet arrival.
C) The END bit is used to terminate a session.
D) The INI bit is used to initiate a session.
E) The FIN bit is used to terminate a session.

Correct Answer

verifed

verified

Apache is a(n) :


A) email server program
B) DNS server program
C) DHCP server program
D) HTTP (or web) server program
E) Operating system

Correct Answer

verifed

verified

When a workstation tries to communicate with a server (ex. www.cnn.com) , which of these is a possible port number of the sender ?


A) 80
B) 21
C) 58
D) 110
E) 65000

Correct Answer

verifed

verified

Below message is generated at the _____ layer: "GET / /HTTP 1.1 Host: www.whitehouse.gov"


A) application
B) transport
C) internet
D) data link
E) physical

Correct Answer

verifed

verified

ICMP messages are encapsulated in the data field of _________ for transmission.


A) IP
B) TCP
C) UDP
D) DNS
E) HTTP

Correct Answer

verifed

verified

UDP (User Datagram Protocol)


A) belongs to the data link layer.
B) is frequently used by real-time applications.
C) provides a connection-oriented service.
D) belongs to the network layer.
E) Issues an acknowledgment when a packet is received.

Correct Answer

verifed

verified

In TCP, which party should decide whether to retransmit a lost or damaged segment?


A) the original sender station
B) the receiver station
C) either the sender or the receiver station depending on the situation.
D) the first router that connects the sender station to the Internet
E) the first router that connects the receiver station to the Internet

Correct Answer

verifed

verified

Which is NOT correctly paired in terms of the software or hardware of a host computer that implements each layer function? Choose the least relevant.  Layers  Implementation  A)  Application  Application  B)  Transport  Operating System  C)  Internet/network  Operating System  D)  Data link  Operating System  E)  Physical  Network Interface Card \begin{array} { | l | l | } \hline { \text { Layers } } & \text { Implementation } \\\hline \text { A) Application } & \text { Application } \\\hline \text { B) Transport } & \text { Operating System } \\\hline \text { C) Internet/network } & \text { Operating System } \\\hline \text { D) Data link } & \text { Operating System } \\\hline \text { E) Physical } & \text { Network Interface Card } \\\hline\end{array}


A) A
B) B
C) C
D) D
E) E

Correct Answer

verifed

verified

Which statement is CORRECT on the connection-orientation/reliability of communications?


A) Connectionless services have explicit openings and closings.
B) Almost all protocols currently in use are connection-oriented and reliable in nature.
C) Reliable protocols resend lost or damaged messages.
D) TCP is the only unreliable protocol.
E) TCP is a connection-less protocol that does not need handshaking.

Correct Answer

verifed

verified

In the screenshot below, I just In the screenshot below, I just A) temporarily assigned an IP to a host. B) contacted a server with the IP address of 127.0.0.1. C) broadcasted a packet to the subnet of 127.0.0.x. D) obtained the MAC address of 127.0.0.1. E) tested my computer's TCP/IP protocol stack. A) temporarily assigned an IP to a host. B) contacted a server with the IP address of 127.0.0.1. C) broadcasted a packet to the subnet of 127.0.0.x. D) obtained the MAC address of 127.0.0.1. E) tested my computer's TCP/IP protocol stack.

Correct Answer

verifed

verified

The real-life analogy of an IP packet is:


A) the Jayne's letter to Brian
B) the airplane that delivers the Jayne's letter
C) the envelop that contains the Jayne's letter
D) Jayne and Brian's mailing addresses
E) Jayne and Brian's houses

Correct Answer

verifed

verified

SYN and ACK are exchanged for _______ between two hosts:


A) session establishment
B) data exchange
C) pinging
D) detection of transmission errors
E) detection of lost messages

Correct Answer

verifed

verified

As for TCP and UDP, which statement is CORRECT?


A) Both are connection-oriented protocol.
B) Both are defined at the transport layer of TCP/IP.
C) Both are reliable protocol.
D) TCP is better than UDP in handling real-time traffic.
E) Both undertake the detection and correction of transmission errors.

Correct Answer

verifed

verified

Which statement is true?


A) The official address of the Internet is the host name.
B) IP packets contain a header, a data, and a trailer fields.
C) OSI standards are more popular than TCP/IP standards in the application layer.
D) International Standard Organization (ISO) is responsible for developing TCP/IP standards.
E) TCP/IP standards dominate the internet layer.

Correct Answer

verifed

verified

________ is an application layer protocol that enables mapping between host names and their IP addresses.


A) SMTP
B) DNS
C) IRC
D) SSH
E) SNMP

Correct Answer

verifed

verified

When does TCP of a host station decide to retransmit a segment?


A) When it does not receive an acknowledgment from the receiver.
B) Never. TCP is not capable of retransmitting segments.
C) When the neighboring switch requests a retransmission due to a lost segment.
D) When the neighboring router requests a retransmission due to a lost segment.
E) When a TCP connection is not properly closed.

Correct Answer

verifed

verified

Which is NOT a PDU(Protocol Data Unit) ?


A) Frame
B) Packet
C) Segment
D) Datagram
E) HTTP

Correct Answer

verifed

verified

Choose an INCORRECT statement on the transport layer process.


A) The port information should be found in the transport layer's TCP segment.
B) The port information should be found in the transport layer's UDP datagram.
C) Opening a TCP connection needs the handshaking process to establish a session.
D) The normal termination of a TCP connection takes exchange of several packets.
E) Transporting multiple files necessary to construct a web page takes one TCP session (assume that HTTP1.1 is used) .

Correct Answer

verifed

verified

I am trying to reach a web server, www.chicago.edu. The response message from the DNS server tells my computer the _____.


A) domain name of the www.chicago.edu server
B) IP address of the www.chicago.edu server
C) Default gateway address of the www.chicago.edu server
D) ISP of www.chicago.edu
E) MAC address of the www.chicago.edu server

Correct Answer

verifed

verified

Showing 21 - 40 of 40

Related Exams

Exam 1

Networking: Fundamental Concepts

33 Questions

Exam 2

Cybersecurity: Fundamentals

13 Questions

Exam 4

Ip Address Planning and Management

38 Questions

Exam 5

Intermediary Devices

31 Questions

Exam 6

Wi-Fi and Cellular Network

43 Questions

Exam 7

Ethernet Lan

24 Questions

Exam 8

Cybersecurity: Threats

23 Questions

Exam 9

Cybersecurity: Network and Host Protection

19 Questions

Exam 10

Cybersecurity: Data Protection

24 Questions

Exam 11

Fundamentals of Packet Routing

29 Questions

Exam 12

Wide Area Network

33 Questions

Exam 13

Physical Layer Data Transmissions

19 Questions

Exam 14

Enterprise Network: LAN Topology, Routing, and Connectivity

30 Questions

Show Answer