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NCTI FINAL EXAM: PROGRESSION FIELD
TECH 3- 4 TEST EXAM| LATEST UPDATE |
Verified Answers Progression: Field Tech III
- IV Conventional Q/A
The open system interconnection model (OSI/R<) Network layer
serves which primary function? - 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 internal protocol (IP)
address? - CORRECT ANSWER>>Router
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.
What network information can be determined from a logical internet
protocol(IP) address? - CORRECT ANSWER>>The host portion and
network portion.
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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 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
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 layerList the six methods by which signals
arrive at the cable system headend. - CORRECT ANSWER>>Direct
feed, coaxial cable, fiber-optic cable, over-the-air, PSTN, and CMTS.
What group established the data-over-cable-service-interface-
specification (DOCSIS)? - CORRECT ANSWER>>CableLabs.
What provides the cable network's interface to the Internet? -
CORRECT ANSWER>>The cable modem termination system
(CMTS).
In terms of bandwidth, how wide is a video signal in a U.S. cable
system? - CORRECT ANSWER>>6 MHz.
NCTI FINAL EXAM: PROGRESSION FIELD
TECH 3- 4 TEST EXAM| LATEST UPDATE |
Verified Answers Progression: Field Tech III
- IV Conventional Q/A
The open system interconnection model (OSI/R<) Network layer
serves which primary function? - 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 internal protocol (IP)
address? - CORRECT ANSWER>>Router
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.
What network information can be determined from a logical internet
protocol(IP) address? - CORRECT ANSWER>>The host portion and
network portion.
, 2|Page
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 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
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 layerList the six methods by which signals
arrive at the cable system headend. - CORRECT ANSWER>>Direct
feed, coaxial cable, fiber-optic cable, over-the-air, PSTN, and CMTS.
What group established the data-over-cable-service-interface-
specification (DOCSIS)? - CORRECT ANSWER>>CableLabs.
What provides the cable network's interface to the Internet? -
CORRECT ANSWER>>The cable modem termination system
(CMTS).
In terms of bandwidth, how wide is a video signal in a U.S. cable
system? - CORRECT ANSWER>>6 MHz.
