Question 1

According to the encapsulation and de-encapsulation process between standard layers, the data field of a frame most likely includes a(n) :

Accepted Answer

A)  IP packet 
B)  sending station's MAC address 
C)  receiving station's MAC address 
D)  TCP segment 
E)  application PDU (protocol data unit) 
A)  IP packet 
B)  sending station's MAC address 
C)  receiving station's MAC address 
D)  TCP segment 
E)  application PDU (protocol data unit) A

Question 2

A Class C network that uses 4 bits for the subnet ID can have up to _____ hosts in each subnet.

Accepted Answer

A)  14 
B)  12 
C)  16 
D)  65,000 
E)  4 
A)  14 
B)  12 
C)  16 
D)  65,000 
E)  4 A

Question 3

According to the encapsulation and de-encapsulation process between standard layers, the data field of a packet may include a(n) :

Accepted Answer

A)  UDP datagram 
B)  TCP segment 
C)  application PDU (protocol data unit) 
D)  Ethernet frame 
E)  UDP datagram or TCP segment 
A)  UDP datagram 
B)  TCP segment 
C)  application PDU (protocol data unit) 
D)  Ethernet frame 
E)  UDP datagram or TCP segment E

Question 4

Which is the general delegation process of IP space to ISPs?

Accepted Answer

A)  IEEE => Regional Registry => ISPs 
B)  InterNIC => Regional Registry => ISPs 
C)  IANA => Regional Registry => ISPs 
D)  Regional Registry => ICANN => ISPs 
E)  Regional Registry => InterNIC => ISP 
A)  IEEE => Regional Registry => ISPs 
B)  InterNIC => Regional Registry => ISPs 
C)  IANA => Regional Registry => ISPs 
D)  Regional Registry => ICANN => ISPs 
E)  Regional Registry => InterNIC => ISP

Question 5

Choose a WRONG statement on the network architecture.

Accepted Answer

A)  It defines basic networking functions and their relationships. 
B)  It is typically manifested in a layer structure. 
C)  It is also called as a reference model. 
D)  A company has to choose either TCP/IP or OSI for its implementation. 
E)  Many communication standards are defined in it in the form of protocols. 
A)  It defines basic networking functions and their relationships. 
B)  It is typically manifested in a layer structure. 
C)  It is also called as a reference model. 
D)  A company has to choose either TCP/IP or OSI for its implementation. 
E)  Many communication standards are defined in it in the form of protocols.

Question 6

Which correctly pairs a standard layer and its PDU name?

Accepted Answer

A)  application - segment 
B)  transport - frame 
C)  internet - packet 
D)  data link - segment 
E)  physical - datagram 
A)  application - segment 
B)  transport - frame 
C)  internet - packet 
D)  data link - segment 
E)  physical - datagram

Question 7

Standard details of network cables should be defined in the _____ layer

Accepted Answer

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

Question 8

Refer to the figure in which the "www.yahoo.com" server is pinged. What is the protocol used to produce the message for communication between two hosts? ________________________.

Accepted Answer

A)  DHCP 
B)  DNS 
C)  ICMP 
D)  HTTP 
E)  ARP 
A)  DHCP 
B)  DNS 
C)  ICMP 
D)  HTTP 
E)  ARP

Question 9

Which of these is an internet layer function?

Accepted Answer

A)  Provision of message integrity 
B)  Flow control 
C)  Error control 
D)  Session management 
E)  Packet creation 
A)  Provision of message integrity 
B)  Flow control 
C)  Error control 
D)  Session management 
E)  Packet creation

Question 10

The TTL (time to live) value included in an IP packet indicates:

Accepted Answer

A)  a maximum number of circuits a packet can go through. 
B)  a maximum number of routers a packet can go through. 
C)  a maximum number of switches a packet can go through within a network. 
D)  the amount of time (ex. 3 minutes) left before the expiration of a packet. 
E)  the amount of time initially given to a packet for its delivery. 
A)  a maximum number of circuits a packet can go through. 
B)  a maximum number of routers a packet can go through. 
C)  a maximum number of switches a packet can go through within a network. 
D)  the amount of time (ex. 3 minutes) left before the expiration of a packet. 
E)  the amount of time initially given to a packet for its delivery.

Question 11

Choose a CORRECT statement on port numbers.

Accepted Answer

A)  Generally, server hosts use ephemeral port numbers to identify applications. 
B)  Port numbers are assigned to both TCP and UDP applications. 
C)  Well-known port numbers range 0 through 65535. 
D)  Computer operating systems use an identical range of ephemeral port numbers. 
E)  The source port of a TCP segment is generally 80 when a browser initiates correspondence with a web server. 
A)  Generally, server hosts use ephemeral port numbers to identify applications. 
B)  Port numbers are assigned to both TCP and UDP applications. 
C)  Well-known port numbers range 0 through 65535. 
D)  Computer operating systems use an identical range of ephemeral port numbers. 
E)  The source port of a TCP segment is generally 80 when a browser initiates correspondence with a web server.

Question 12

Which PDU (protocol data unit) contains information necessary for handshaking (or session establishment) between two hosts?

Accepted Answer

A)  transport layer's segment 
B)  transport layer's datagram 
C)  internet layer's packet 
D)  data link layer's frame 
E)  application PDU 
A)  transport layer's segment 
B)  transport layer's datagram 
C)  internet layer's packet 
D)  data link layer's frame 
E)  application PDU

Question 13

The port number, 134, must be most likely:

Accepted Answer

A)  a well-known port number assigned to a server application. 
B)  an ephemeral port number assigned to a server application. 
C)  a dynamic port number assigned to a client application. 
D)  a dynamic port number assigned to a server application. 
E)  a well-known port number assigned to a client application. 
A)  a well-known port number assigned to a server application. 
B)  an ephemeral port number assigned to a server application. 
C)  a dynamic port number assigned to a client application. 
D)  a dynamic port number assigned to a server application. 
E)  a well-known port number assigned to a client application.

Question 14

MAC addresses are used at the _________ layer for addressing.

Accepted Answer

A)  Application 
B)  Data Link 
C)  Internet 
D)  Physical 
E)  Transport 
A)  Application 
B)  Data Link 
C)  Internet 
D)  Physical 
E)  Transport

Question 15

Temporary IP addresses are dynamically allocated by the _________ to requesting hosts.

Accepted Answer

A)  SNMP server 
B)  DNS server 
C)  SMTP server 
D)  DHCP server 
E)  Remote access server 
A)  SNMP server 
B)  DNS server 
C)  SMTP server 
D)  DHCP server 
E)  Remote access server

Question 16

The following figure demonstrates layer processing necessary to exchange data between two host computers. The device within the ellipse must be a _______.

Accepted Answer

A)  Bridge 
B)  Switch 
C)  Router 
D)  Hub 
E)  Access point 
A)  Bridge 
B)  Switch 
C)  Router 
D)  Hub 
E)  Access point

Question 17

The Chrome browser operates on the _________ layer.

Accepted Answer

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

Question 18

At the command prompt, "C:\>netstat -n" can be issued to

Accepted Answer

A)  check available host stations within a network. 
B)  list sockets in TCP sessions. 
C)  check the subnetwork address of a host. 
D)  find the DNS server address of a host. 
E)  locate the DHCP server address of a host. 
A)  check available host stations within a network. 
B)  list sockets in TCP sessions. 
C)  check the subnetwork address of a host. 
D)  find the DNS server address of a host. 
E)  locate the DHCP server address of a host.

Question 19

Which of the following is NOT a layer in the hybrid TCP/IP-OSI architecture?

Accepted Answer

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

Question 20

A protocol should govern communications between:

Accepted Answer

A)  programs in the same layer of a computer. 
B)  programs in the same layer of two different computers. 
C)  programs in two different layers of a computer. 
D)  programs in two different layers of two different computers. 
E)  B and C are both correct. 
A)  programs in the same layer of a computer. 
B)  programs in the same layer of two different computers. 
C)  programs in two different layers of a computer. 
D)  programs in two different layers of two different computers. 
E)  B and C are both correct.

According to the encapsulation and de-encapsulation process between standard layers, the data field of a frame most likely includes a(n) :

A Class C network that uses 4 bits for the subnet ID can have up to _____ hosts in each subnet.

According to the encapsulation and de-encapsulation process between standard layers, the data field of a packet may include a(n) :

Which is the general delegation process of IP space to ISPs?

Choose a WRONG statement on the network architecture.

Which correctly pairs a standard layer and its PDU name?

Standard details of network cables should be defined in the _____ layer

Refer to the figure in which the "www.yahoo.com" server is pinged. What is the protocol used to produce the message for communication between two hosts? ________________________.

Which of these is an internet layer function?

The TTL (time to live) value included in an IP packet indicates:

Choose a CORRECT statement on port numbers.

Which PDU (protocol data unit) contains information necessary for handshaking (or session establishment) between two hosts?

The port number, 134, must be most likely:

MAC addresses are used at the _________ layer for addressing.

Temporary IP addresses are dynamically allocated by the _________ to requesting hosts.

The following figure demonstrates layer processing necessary to exchange data between two host computers. The device within the ellipse must be a _______.

The Chrome browser operates on the _________ layer.

At the command prompt, "C:\>netstat -n" can be issued to

Which of the following is NOT a layer in the hybrid TCP/IP-OSI architecture?

A protocol should govern communications between:

Networking: Fundamental Concepts

Cybersecurity: Fundamentals

Ip Address Planning and Management

Intermediary Devices

Wi-Fi and Cellular Network

Ethernet Lan

Cybersecurity: Threats

Cybersecurity: Network and Host Protection

Cybersecurity: Data Protection

Fundamentals of Packet Routing

Wide Area Network

Physical Layer Data Transmissions

Enterprise Network: LAN Topology, Routing, and Connectivity

Filters

Exam 3: Essential Layers of Computer Networking

According to the encapsulation and de-encapsulation process between standard layers, the data field of a frame most likely includes a(n) :

A Class C network that uses 4 bits for the subnet ID can have up to _____ hosts in each subnet.

According to the encapsulation and de-encapsulation process between standard layers, the data field of a packet may include a(n) :

Which is the general delegation process of IP space to ISPs?

Choose a WRONG statement on the network architecture.

Which correctly pairs a standard layer and its PDU name?

Standard details of network cables should be defined in the _____ layer

Refer to the figure in which the "www.yahoo.com" server is pinged. What is the protocol used to produce the message for communication between two hosts? ________________________.

Which of these is an internet layer function?

The TTL (time to live) value included in an IP packet indicates:

Choose a CORRECT statement on port numbers.

Which PDU (protocol data unit) contains information necessary for handshaking (or session establishment) between two hosts?

The port number, 134, must be most likely:

MAC addresses are used at the _________ layer for addressing.

Temporary IP addresses are dynamically allocated by the _________ to requesting hosts.

The following figure demonstrates layer processing necessary to exchange data between two host computers. The device within the ellipse must be a _______.

The Chrome browser operates on the _________ layer.

At the command prompt, "C:\>netstat -n" can be issued to

Which of the following is NOT a layer in the hybrid TCP/IP-OSI architecture?

A protocol should govern communications between:

Networking: Fundamental Concepts

Cybersecurity: Fundamentals

Ip Address Planning and Management

Intermediary Devices

Wi-Fi and Cellular Network

Ethernet Lan

Cybersecurity: Threats

Cybersecurity: Network and Host Protection

Cybersecurity: Data Protection

Fundamentals of Packet Routing

Wide Area Network

Physical Layer Data Transmissions

Enterprise Network: LAN Topology, Routing, and Connectivity

Filters