Understanding Voice & Data Networks Exam 2023 with
complete solution
What term describes the number of wave crests that pass a fixed point during a
particular period of time?
Frequency
In data networking, this term is defined as "Signals may flow in either direction,
but not simultaneously".
Half-duplex
Two CPUs have the same size data bus. Which one will process data faster?
The one with a higher clock speed
This unique ID number is coordinated by the Institute of Electrical and
Electronics Engineers and is used by only one network interface card anywhere
in the world.
Media access control address (MAC)
What type of network management and utility software is typically used by
network administrators and information systems personnel?
Backup and recovery utilities.
Which of the following is also called "Thicknet" or "yellow wire" and includes two
layers of foil shielding as well as an additional copper mesh shield?
10Base5 cable
According to 10BaseT wiring rules, what is the maximum segment length without
a repeater?
100 m
When light travels through a fiber-optic cable, the change in refractive index
causes the light to refract off which of the following?
The boundary between the core and the cladding
Which of the following requires a laser transmitter?
Single-mode fiber
In what part of a building would you typically find punch-down blocks?
Wiring closet
Encapsulation and protocol headers, decapsulation, and reassembly are three of
the four basic techniques used whenever different layers of protocols work
together. What is the fourth?
Segmentation
Which type of address is unique anywhere in the world?
NIC address
Which layer of the OSI protocol stack handles frames?
Data Link
Which of the following best represents a logical address?
IPv6
In data networking, ________ describes the characteristics of a transmission link,
such as throughput, setup time, or accuracy.
Quality of service (QoS)
, Transport layer processes work with transmission channels using multiplexing
and ___________ techniques.
Parallelization
Which of the following protocols is commonly used in the Session Layer?
Advanced Program-to-Program Communications (APPC)
What is the binary equivalent to the decimal number "14"?
0000 1110
Data security, data compression, and ________ are the three main services that
the Presentation Layer provides.
Data representation
Which of the following is an example of a Transport Layer protocol?
Transmission Control Protocol (TCP)
Carrier sense multiple access with collision detection (CSMA/CD) is most like
which of the following?
An informal conversation in which each person speaks when the opportunity presents
itself, but only one person speaks at any time
The IEEE 802.3 standard defines which of the following?
Ethernet
What Fast Ethernet standard can send Ethernet frames at 100 Mbps over
Category 5E UTP or fiber optic cabling?
IEEE 802.3u
What enables the transport of computer data over analog telephone local loops?
Telephone modems.
Which of the following describes the bandwidth of a single FT1?
64 Kbps
How much bandwidth in a T1 circuit is allocated for control information?
8 Kbps.
What device is required to attach a non-ISDN device to an ISDN network?
Terminal adaptor (TA)
Which of the following is a connection-oriented packet-switched network service
that works at the Data Link Layer?
Frame relay
What is a private, internal network that uses Internet applications, tools, and
protocols?
Intranet
Which of the following is implemented over a public telecommunication switching
system, such as a frame relay cloud?
A public network
When a repeater receives a bit pattern at its input, what does it do?
It generates the same pattern at its output, at a higher power level
Which of the following best represents a hub?
A repeater
Forwarding, Learning, and _______ are three important functions provided by a
bridge.
Filtering
If a network contains an active loop, what problem can occur?
complete solution
What term describes the number of wave crests that pass a fixed point during a
particular period of time?
Frequency
In data networking, this term is defined as "Signals may flow in either direction,
but not simultaneously".
Half-duplex
Two CPUs have the same size data bus. Which one will process data faster?
The one with a higher clock speed
This unique ID number is coordinated by the Institute of Electrical and
Electronics Engineers and is used by only one network interface card anywhere
in the world.
Media access control address (MAC)
What type of network management and utility software is typically used by
network administrators and information systems personnel?
Backup and recovery utilities.
Which of the following is also called "Thicknet" or "yellow wire" and includes two
layers of foil shielding as well as an additional copper mesh shield?
10Base5 cable
According to 10BaseT wiring rules, what is the maximum segment length without
a repeater?
100 m
When light travels through a fiber-optic cable, the change in refractive index
causes the light to refract off which of the following?
The boundary between the core and the cladding
Which of the following requires a laser transmitter?
Single-mode fiber
In what part of a building would you typically find punch-down blocks?
Wiring closet
Encapsulation and protocol headers, decapsulation, and reassembly are three of
the four basic techniques used whenever different layers of protocols work
together. What is the fourth?
Segmentation
Which type of address is unique anywhere in the world?
NIC address
Which layer of the OSI protocol stack handles frames?
Data Link
Which of the following best represents a logical address?
IPv6
In data networking, ________ describes the characteristics of a transmission link,
such as throughput, setup time, or accuracy.
Quality of service (QoS)
, Transport layer processes work with transmission channels using multiplexing
and ___________ techniques.
Parallelization
Which of the following protocols is commonly used in the Session Layer?
Advanced Program-to-Program Communications (APPC)
What is the binary equivalent to the decimal number "14"?
0000 1110
Data security, data compression, and ________ are the three main services that
the Presentation Layer provides.
Data representation
Which of the following is an example of a Transport Layer protocol?
Transmission Control Protocol (TCP)
Carrier sense multiple access with collision detection (CSMA/CD) is most like
which of the following?
An informal conversation in which each person speaks when the opportunity presents
itself, but only one person speaks at any time
The IEEE 802.3 standard defines which of the following?
Ethernet
What Fast Ethernet standard can send Ethernet frames at 100 Mbps over
Category 5E UTP or fiber optic cabling?
IEEE 802.3u
What enables the transport of computer data over analog telephone local loops?
Telephone modems.
Which of the following describes the bandwidth of a single FT1?
64 Kbps
How much bandwidth in a T1 circuit is allocated for control information?
8 Kbps.
What device is required to attach a non-ISDN device to an ISDN network?
Terminal adaptor (TA)
Which of the following is a connection-oriented packet-switched network service
that works at the Data Link Layer?
Frame relay
What is a private, internal network that uses Internet applications, tools, and
protocols?
Intranet
Which of the following is implemented over a public telecommunication switching
system, such as a frame relay cloud?
A public network
When a repeater receives a bit pattern at its input, what does it do?
It generates the same pattern at its output, at a higher power level
Which of the following best represents a hub?
A repeater
Forwarding, Learning, and _______ are three important functions provided by a
bridge.
Filtering
If a network contains an active loop, what problem can occur?
