NCTI PREMIUM TEST BANK FULL
SOLUTION REVIEW WITH EXPERT
VERIFIED ANSWERS
• The Open Systems Interconnection reference model (OSI/RM)
Network Layer serves which primary purpose? Answer: It uses Layer 3
addresses to create multiple routed networks.
• The address 68.56.189.17 belongs to which Internet protocol (IP)
class? Answer: Class A
• What happens to a datagram sent by a higher level protocol to a
127.x.y.z address? 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? 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? Answer: Decapsulate the packet.
• What network information can be determined from a logical Internet
protocol (IP) address? 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)? 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?
Answer: The Transport Layer.
• All computers running on the transmission control protocol/Internet
protocol (TCP/IP) suite have which of the following in common?
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)? Answer: The Physical
Layer.
• Which one of the following protocols allows email clients to download
their messages from an email server? Answer: Post Office Protocol
version 3 (POP3).
• Hypertext transfer protocol (HTTP) is what type of protocol? Answer:
Stateless.
• On the file transfer protocol (FTP) server, what manages client
requests for file retrieval or transmission? Answer: A daemon.
, • What are the primary requirements to connect to a transmission control
protocol/Internet protocol (TCP/IP) network? 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? Answer: Store-and-forward.
• Host names and uniform resource locators (URL) are resolved to
Internet protocol (IP) addresses by which of the following applications?
Answer: Domain Name System (DNS).
• What happens when the browser application finishes downloading the
files necessary to display a web page? Answer: The browser and server
drop the connections, 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? Answer: Internet Message
Access Protocol version 4 (IMAP4).
• What type of server maintains an access log to assist with
troubleshooting and tracking down malicious users? Answer: A file
transfer protocol (FTP) server.
SOLUTION REVIEW WITH EXPERT
VERIFIED ANSWERS
• The Open Systems Interconnection reference model (OSI/RM)
Network Layer serves which primary purpose? Answer: It uses Layer 3
addresses to create multiple routed networks.
• The address 68.56.189.17 belongs to which Internet protocol (IP)
class? Answer: Class A
• What happens to a datagram sent by a higher level protocol to a
127.x.y.z address? 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? 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? Answer: Decapsulate the packet.
• What network information can be determined from a logical Internet
protocol (IP) address? 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)? 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?
Answer: The Transport Layer.
• All computers running on the transmission control protocol/Internet
protocol (TCP/IP) suite have which of the following in common?
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)? Answer: The Physical
Layer.
• Which one of the following protocols allows email clients to download
their messages from an email server? Answer: Post Office Protocol
version 3 (POP3).
• Hypertext transfer protocol (HTTP) is what type of protocol? Answer:
Stateless.
• On the file transfer protocol (FTP) server, what manages client
requests for file retrieval or transmission? Answer: A daemon.
, • What are the primary requirements to connect to a transmission control
protocol/Internet protocol (TCP/IP) network? 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? Answer: Store-and-forward.
• Host names and uniform resource locators (URL) are resolved to
Internet protocol (IP) addresses by which of the following applications?
Answer: Domain Name System (DNS).
• What happens when the browser application finishes downloading the
files necessary to display a web page? Answer: The browser and server
drop the connections, 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? Answer: Internet Message
Access Protocol version 4 (IMAP4).
• What type of server maintains an access log to assist with
troubleshooting and tracking down malicious users? Answer: A file
transfer protocol (FTP) server.
