Intro to Network:(NCTI) Exam Test Questions And
Answers Verified 100% Correct
The primary purpose of a Network Layer protocol is to - ANSWER Transmit packets
between source and destination nodes that may not be
connected by the same physical link.
Because the primary job of the OSI Presentation Layer is to deal with the
format of computing information, the Presentation Layer would be better named
the: - ANSWER Representation layer.
A network interface card (NIC), aka media access control (MAC) address,
resides at the _________ Layer and a logical address resides at the
___________ Layer. - ANSWER Data Link/Network.
Which of the layers below is most concerned with getting a packet through a
network from a source, through intermediate nodes, to the final destination? -
ANSWER Network.
The layer of the OSI Model that controls the way information flows between
processes is which of the following? - ANSWER Session.
Ethernet's carrier sense multiple access with collision detection (CSMA/CD)
method is defined by what Institute of Electronics Engineers (IEEE) standard? -
ANSWER 802.2.
The original Ethernet operated at which of the following speeds? - ANSWER 10 Mbps.
What media access control (MAC) method does Ethernet use? - ANSWER Carrier
sense multiple access with collision detection (CSMA/CD).
What media access control (MAC) method do wireless local area networks (WLAN)
use? - ANSWER Carrier sense multiple access with collision avoidance
(CSMA/CA).
Besides data rates, what is the difference between the Institute of Electrical and
Electronics Engineers (IEEE) 802.11a and 802.11b wireless standards? -
ANSWER The 802.11a uses the 5.8 GHz range, and the 802.11b uses the 2.4 GHz
range.
When several nodes share the same transmission medium (hub, switch, or radio
channel), each node will receive the frame transmitted between client and server, and
, vice versa. Which node will process the information inside the frame? - ANSWER The
node with a network interface card (NIC) address that matches the destination address
in the Ethernet frame header.
What Application/Presentation Layer protocol is used by a Windows client
retrieving files from a file server? - ANSWER Server Message Block (SMB).
How is a collision detected in carrier sense multiple access with collision detection
(CSMA/CD)? - ANSWER While transmitting, the node listens to the bus,
comparing the received frame to what was transmitted. If the received frame is
different than what was transmitted, a collision is assumed.
Most wireless office local area networks (LAN) currently operate in what
frequency band? - ANSWER 2.4 GHz.
What happens if a sending node wants to transmit data that is longer than the maximum
packet size? - ANSWER The Network Layer splits the data into more than one packet.
Which of the following is used by bridges to make bridging decisions? - ANSWER
Frame addresses.
A bridge normally operates at which of the following layers of the Open
Systems Interconnection (OSI) Model? - ANSWER The Data Link Layer.
A Layer 2 switch is used to switch: - ANSWER Frames.
A router normally operates at which layer of the Open Systems
Interconnection (OSI) Model? - ANSWER The Network Layer.
What distinguishes routers from switches and bridges? - ANSWER Routers operate on
packets; switches and bridges operate on frames.
In what two ways is the gateway used? - ANSWER As a router and a protocol
converter.
A switch normally operates at which of the following layers of the Open Systems
Interconnection (OSI) Model? - ANSWER The Data Link Layer.
What unit of information does a bridge operate on? - ANSWER Segment.
Which of the following represents the basic definition of a collision domain? - ANSWER
The area of a network where all nodes receive all frames transmitted.
Answers Verified 100% Correct
The primary purpose of a Network Layer protocol is to - ANSWER Transmit packets
between source and destination nodes that may not be
connected by the same physical link.
Because the primary job of the OSI Presentation Layer is to deal with the
format of computing information, the Presentation Layer would be better named
the: - ANSWER Representation layer.
A network interface card (NIC), aka media access control (MAC) address,
resides at the _________ Layer and a logical address resides at the
___________ Layer. - ANSWER Data Link/Network.
Which of the layers below is most concerned with getting a packet through a
network from a source, through intermediate nodes, to the final destination? -
ANSWER Network.
The layer of the OSI Model that controls the way information flows between
processes is which of the following? - ANSWER Session.
Ethernet's carrier sense multiple access with collision detection (CSMA/CD)
method is defined by what Institute of Electronics Engineers (IEEE) standard? -
ANSWER 802.2.
The original Ethernet operated at which of the following speeds? - ANSWER 10 Mbps.
What media access control (MAC) method does Ethernet use? - ANSWER Carrier
sense multiple access with collision detection (CSMA/CD).
What media access control (MAC) method do wireless local area networks (WLAN)
use? - ANSWER Carrier sense multiple access with collision avoidance
(CSMA/CA).
Besides data rates, what is the difference between the Institute of Electrical and
Electronics Engineers (IEEE) 802.11a and 802.11b wireless standards? -
ANSWER The 802.11a uses the 5.8 GHz range, and the 802.11b uses the 2.4 GHz
range.
When several nodes share the same transmission medium (hub, switch, or radio
channel), each node will receive the frame transmitted between client and server, and
, vice versa. Which node will process the information inside the frame? - ANSWER The
node with a network interface card (NIC) address that matches the destination address
in the Ethernet frame header.
What Application/Presentation Layer protocol is used by a Windows client
retrieving files from a file server? - ANSWER Server Message Block (SMB).
How is a collision detected in carrier sense multiple access with collision detection
(CSMA/CD)? - ANSWER While transmitting, the node listens to the bus,
comparing the received frame to what was transmitted. If the received frame is
different than what was transmitted, a collision is assumed.
Most wireless office local area networks (LAN) currently operate in what
frequency band? - ANSWER 2.4 GHz.
What happens if a sending node wants to transmit data that is longer than the maximum
packet size? - ANSWER The Network Layer splits the data into more than one packet.
Which of the following is used by bridges to make bridging decisions? - ANSWER
Frame addresses.
A bridge normally operates at which of the following layers of the Open
Systems Interconnection (OSI) Model? - ANSWER The Data Link Layer.
A Layer 2 switch is used to switch: - ANSWER Frames.
A router normally operates at which layer of the Open Systems
Interconnection (OSI) Model? - ANSWER The Network Layer.
What distinguishes routers from switches and bridges? - ANSWER Routers operate on
packets; switches and bridges operate on frames.
In what two ways is the gateway used? - ANSWER As a router and a protocol
converter.
A switch normally operates at which of the following layers of the Open Systems
Interconnection (OSI) Model? - ANSWER The Data Link Layer.
What unit of information does a bridge operate on? - ANSWER Segment.
Which of the following represents the basic definition of a collision domain? - ANSWER
The area of a network where all nodes receive all frames transmitted.
