NCTI 2023 EXAM (CORRECTLY
ANSWERED and Graded A+)
The open source interconnection reference model (OSI/RM)
Network layer servers which primary purpose? - Correct Answer
- It uses layer 3 addresses to create multiple routed networks
The address 68. 56. 189. 17 belongs to which Internet protocol
(IP) class? - Correct Answer - Class A
What happens to a datagram sent by a higher level protocol to a
127.x.y.z address? - Correct Answer - The datagram loops back
inside the host and never leaves the network interface card (NIC)
Which device evaluates and acts upon a packet's Internet
protocol (IP) address? - Correct Answer - Router
The network layer must do what to a received frame first, in order
to determine the route over which it will forward the datagram to
the next network? - Correct Answer - Decapsulate the packet
Which network information can be determined from a logical
Internet protocol (IP) address? - Correct Answer - The host
portion and network portion
,The physical address of a device is processed by which layer of
the open systems interconnection reference model (OSI/RM)? -
Correct Answer - The data link layer
Which layer of the open systems interconnection reference model
(OSI/RM) would you suspect as being the problem when packets
are arriving at the server but no information is being returned to
the client? - Correct Answer - The Transport Layer
All computers running on the transmission control
protocol/Internet protocol (TCP/IP) suite have which of the
following in common? - Correct Answer - Each computer is
assigned its own internet protocol (IP) address
A repeater operates at which layer of the open systems
interconnection reference model (OSI/RM)? - Correct Answer -
The physical layer
Which one of the following protocols allows email clients to
download their messages from an email server? - Correct
Answer - Post Office Protocol version 3 (POP3)
Hypertext transfer protocol (HTTP) is what type of protocol? -
Correct Answer - Stateless
, On the file transfer protocol (FTP) server, what manages client
requests for file retrieval or transmission? - Correct Answer - A
daemon
What are the primary requirements to connect to a transmission
control protocol/ Internet protocol (TCP/IP) network? - Correct
Answer - Unique pairs of Network Layer and Transport Layer
addresses and use of the TCP/IP protocol suite
What type of delivery method uses an email server between the
sender and the receiver of messages? - Correct Answer - Store-
and-forward
Host names and uniform resource locators (URL) are resolved to
Internet protocol (IP) addresses by which of the following
application? - Correct Answer - Domain Name System (DNS)
What happens when the browser application finishes downloading
the files necessary to display a Web page? - Correct Answer -
The browser and server drop the connection, and the browser
maintains the page and its elements in local memory
Which email protocol enables the messages to be viewed without
first downloading them from the email server? - Correct Answer -
Internet Message Access Protocol 4 (IMAP4)
ANSWERED and Graded A+)
The open source interconnection reference model (OSI/RM)
Network layer servers which primary purpose? - Correct Answer
- It uses layer 3 addresses to create multiple routed networks
The address 68. 56. 189. 17 belongs to which Internet protocol
(IP) class? - Correct Answer - Class A
What happens to a datagram sent by a higher level protocol to a
127.x.y.z address? - Correct Answer - The datagram loops back
inside the host and never leaves the network interface card (NIC)
Which device evaluates and acts upon a packet's Internet
protocol (IP) address? - Correct Answer - Router
The network layer must do what to a received frame first, in order
to determine the route over which it will forward the datagram to
the next network? - Correct Answer - Decapsulate the packet
Which network information can be determined from a logical
Internet protocol (IP) address? - Correct Answer - The host
portion and network portion
,The physical address of a device is processed by which layer of
the open systems interconnection reference model (OSI/RM)? -
Correct Answer - The data link layer
Which layer of the open systems interconnection reference model
(OSI/RM) would you suspect as being the problem when packets
are arriving at the server but no information is being returned to
the client? - Correct Answer - The Transport Layer
All computers running on the transmission control
protocol/Internet protocol (TCP/IP) suite have which of the
following in common? - Correct Answer - Each computer is
assigned its own internet protocol (IP) address
A repeater operates at which layer of the open systems
interconnection reference model (OSI/RM)? - Correct Answer -
The physical layer
Which one of the following protocols allows email clients to
download their messages from an email server? - Correct
Answer - Post Office Protocol version 3 (POP3)
Hypertext transfer protocol (HTTP) is what type of protocol? -
Correct Answer - Stateless
, On the file transfer protocol (FTP) server, what manages client
requests for file retrieval or transmission? - Correct Answer - A
daemon
What are the primary requirements to connect to a transmission
control protocol/ Internet protocol (TCP/IP) network? - Correct
Answer - Unique pairs of Network Layer and Transport Layer
addresses and use of the TCP/IP protocol suite
What type of delivery method uses an email server between the
sender and the receiver of messages? - Correct Answer - Store-
and-forward
Host names and uniform resource locators (URL) are resolved to
Internet protocol (IP) addresses by which of the following
application? - Correct Answer - Domain Name System (DNS)
What happens when the browser application finishes downloading
the files necessary to display a Web page? - Correct Answer -
The browser and server drop the connection, and the browser
maintains the page and its elements in local memory
Which email protocol enables the messages to be viewed without
first downloading them from the email server? - Correct Answer -
Internet Message Access Protocol 4 (IMAP4)
