Question 1
1 out of 1 points
Which of the following is not governed by one of the Wireless standards (IEEE
802.11, 802.15, or 802.16)?
Selected
Answer: All of the above are governed by these
standards.
Question 2
0 out of 1 points
Which of the following is not one of the three main types of copper media used in
networking?
Selected
Answer: All of the above are types of copper media used in
networking
Question 3
1 out of 1 points
If a node receives a frame and the calculated CRC does not match the CRC in the
FCS, what action will the node take?
Selected
Answer: Drop the frame
Question 4
1 out of 1 points
The ____________________________ topology provides high availability, but
requires that every end system be interconnected to every other system.
Selected
Answer: Mesh
Question 5
1 out of 1 points
The new 10-GB standard for Ethernet has a provision for the use of STP cabling, and
this provision is causing a renewed interest in STP cabling.
Selected
Answer:
Tru
e
Question 6
0 out of 1 points
Which Wi-Fi standard can simultaneously operate in the 2.4- and 5-GHz frequency
bands, providing data rates up to 450 Mbps and 1.3 Gbps?
Selected
Answer: IEEE 802.11n
Question 7
0 out of 1 points
Cat5 is now the minimally acceptable cable type, with Cat5e being the recommended
type for new building installations.
Selected
Answer:
Tru
e
Question 8
1 out of 1 points
Which Wi-Fi standard operates in the 2.4- or 5-GHz frequency band with expected
data rates between 100 Mbps and 600 Mbps, with a distance range of up to 70
meters?
Selected
Answer: IEEE 802.11n
Question 9
1 out of 1 points
When using the controlled access method, network devices take turns, in sequence,
to access the medium. If an end device does not need to access the medium, the
opportunity passes to the next end device.
Selected
Answer:
Tru
e
Question 10
1 out of 1 points
Unlike the bus topology, the ring does not need to be terminated.
Selected
Answer:
Tru
e
Question 11
1 out of 1 points
What type of encoding is used when a 0 is represented by a high-to-low voltage
transition, and a 1 is represented as a low-to-high voltage transition?
Selected
Answer: Manchester
Question 12
1 out of 1 points
Which of the following are disadvantages of using fiber-optic cabling over copper
media?
Selected
Answer: All of the above are comparative disadvantages of fiber over copper.
Question 13
0 out of 1 points
The media access method used by the data link protocol is determined by the logical
point-to-point topology, not the physical topology.
Selected
Answer:
Fals
e
Question 14
1 out of 1 points
Which of the following is used to counter the negative effects of EMI and RFI?
Selected
Answer:
Some types of copper cables are wrapped in metallic shielding and require
proper grounding connections.
Question 15
1 out of 1 points
What is the purpose of cladding in fiber-optic cables?
Selected
Answer: Prevention of light loss
Question 16
1 out of 1 points
The TIA-598 standard recommends a(n) _______ jacket for single-mode fiber cables
and a(n) ________ one for multimode fiber cables.
Selected
Answer: Yellow, orange (or aqua)
Question 17
1 out of 1 points
The _____________________________ is the lower sublayer of the data link layer
that defines the media access processes performed by the hardware.
Selected
Answer: Media Access Control
Question 18
1 out of 1 points
What type of connector is used to terminate UTP cables?
Selected
Answer: RJ-45
Question 19
0 out of 1 points
Which of the following is not true with respect to digital bandwidth?
Selected
Answer: All of the above are true with respect to digital media.
Question 20
1 out of 1 points
______________ stipulates the commercial cabling standards for LAN installations and is the
standard most commonly used in LAN cabling environments.
Selected
Answer:
TIA/EIA
568A
Question 21
0 out of 1 points
___________________________ is a technique in which an analog signal, such as a
voice, is converted into a digital signal by sampling the signal’s amplitude and
expressing the different amplitudes as a binary number.
Selected
Answer: Amplitude modulation (AM)
Question 22
1 out of 1 points
Which of the following is a characteristic of Cat7 cable?
Selected
Answer: Includes individual pairs wrapped in a shield with the entire four pairs
wrapped in another shield.
Question 23
0 out of 1 points
What type of physical topology involves all end systems chained to each other and
terminated in some form on each end?
Selected Star
Answer:
Question 24
1 out of 1 points
____________________ is the ability to determine whether a frame contains an error
and the ability to repair the error from the information sent with the frame
communication.
Selected
Answer: Error
correction
Question 25
1 out of 1 points
IEEE rates UTP cabling according to its performance, thereby placing cables into
categories according to their ability to carry higher-bandwidth rates. Of the following
categories, which one is the recommended type for data networking in new building
installations?
Selected
Answer: Cat6
Powered by TCPDF (www.tcpdf.org)
