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NCTI FIELD TECH 3-4 TEST EXAM Complete Solutions | Latest
Question 1: The open system interconnection reference model
(OSI/RM) Network layer serves which primary function?
CORRECT ANSWER : It uses layer 3 addresses to create
multiple routed networks
Question 2: The address 68.56.189.17 belongs to which internet
protocol IP class?
CORRECT ANSWER : Class A
Question 3: 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)
Question 4: Which device evaluates and acts upon a packet's
internal protocol (IP) address?
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CORRECT ANSWER : Router
Question 5: The network layer must do what to a received
frame, in order to determine the route over which it will forward the datagram to the next network?
CORRECT ANSWER : Decapsulate the packet
Question 6: What network information can be determined from
a logical internet protocol (IP) address?
CORRECT ANSWER : The host portion and network portion
Question 7: 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
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Question 8: Which layer of the open system interconnection
reference model (OSI/RM) would you suspect as being the problem when packets arriving at the server but no information is being returned to the client?
CORRECT ANSWER : The transport layer
Question 9: 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
Question 10: A repeater operates at which layer of the open
systems interconnection reference model (OSI/RM)?
CORRECT ANSWER : The physical layer
Question 11: Which of the following protocols allows email
clients to download their messages from an email server?
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CORRECT ANSWER : Post office protocol version 3 (POP3)
Question 12: Hypertext transfer protocol (HTTP) is what type of
protocol?
CORRECT ANSWER : Stateless
Question 13: On the file transfer protocol (FTP) server, what
manages client requests for file retrieval or transmission?
CORRECT ANSWER : A daemon
Question 14: What are the primary requirements to connect 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
