The command show running-config

displays the configuration file that is located in RAM

What is one advantage of using fiber optic cabling in networks?

not susceptible to electromagnetic interference

What is a characteristic of a collision domain?

all computers on a single shared access media

What is the function of the session layer?

manages data exchange between presentation layer entities

a network that connects users cross a large geographical area

What can be done if the area of the LAN is more than 200 meters in diameter?

a repeater could be installed to extend the network

What is the definition of a bit?

a binary digit used in the binary number system, either a 0 or 1

Which process does the OSI model describe?

info or data moves from one computer through a network to another computer

Which describes Layer 3 path determination in the OSI model?

enables a router to choose the next hop

What is the primary cause of crosstalk?

electrical noise from other wires in a cable

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Cybersecurity 1

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Questions 25

Answers

1
Which of the following is a source that can produce interference on UTP cable?
fiber optic cabling
fluorescent lights
coaxial cabling
bridges
2
The command show running-config
displays the configuration file that is located in RAM
displays the configuration of an interface on the router
displays the configuration files that located in NVRAM
Both A & B
3
What is the term to describe the maximum number of bits that can be transferred in a given amount of time?
impedance
attenuation
propagation
bandwidth
4
What does the twisting of the wires do in a CAT-5 cable?
limits signal degradation
makes it less expensive
allow 6 pairs to fit in the space of 4 pairs
makes it thinner
5
What is one advantage of using fiber optic cabling in networks?
not susceptible to electromagnetic interference
it is available with or without an outer shield
cheap
easy to install
6
What is a characteristic of a collision domain?
all computers sharing a single MAC address
all computers sharing a single IP address
all computers on a single shared access media
all computers within a WAN
7
kind of jack used for making a connection to a Category 5 unshielded twisted pair cable in a horizontal cabling scheme?
UTP 55
EIA 45
BNC
RJ-45
8
What is the function of the session layer?
provides reliable transit of data across the physical layer
provides connectivity and path selection between two end systems
Concerened with data structures and the negotiation of data transfer syntax
manages data exchange between presentation layer entities
9
When creating a network from just two PCs, what kind of cable would be used to directly connect them?
UTP Crossover cable
Standard UTP Cable
Fiber optic cable
UTP rollover cable
10
After the bootstrap program is loaded, the router tries to locate Cisco IOS from which of the following?
ROM
Both A & B
RAM
flash memory
11
What type of addressing scheme is formed by MAC addresses?
hierarchal
circular
elliptical
flat
12
What is a WAN?
a network that connects business departments in a building
a network that connects devices in a workgroup setting
a network that connects physically adjacent devices
a network that connects users cross a large geographical area
13
What can be done if the area of the LAN is more than 200 meters in diameter?
special NICs can be purchased to extend the network
all of the above
another server could be used to extend the network
a repeater could be installed to extend the network
14
Which factor reduces throughput?
increased size of hard drive
decreased number of users
decreased size of hard drive
increased number of users
15
Which term refers to the amount of data that can be transmitted before receiving an acknowledgement?
window size
two way handshake
exceptional acknowledgment
closed connection
16
What is the definition of a bit?
a binary digit used in the binary number system, either a 0 or 1
the interface on an internetworking device, such as a router
network areas within which data packets that have collided are propagated
the section of network that is bounded by bridges, routers, or switches
17
password recovery procedure, after issuing a Ctrl-Break upon router startup, what should be the config register setting
0x2102
0x10F
0x0000
0x2142
18
password recovery procedure: just before saving running config, after enabling new secret password:what should config be
0x2102
0x10F
0x0000
0x2142
19
Which process does the OSI model describe?
network uses transmission devices provided by carriers to create signal
info or data moves from one computer through a network to another computer
how to maintain physical and software links between networks
protect networks from unwanted instrusions such as hackers and viruses
20
Which of the following is a protocol found at the transport layer?
TDC
UCP
UDP
TDP
21
What is a function of a MAC address?
provides increased network stability
provides a unique identity
provides a collision free domain
provides a hierarchical addressing scheme
22
Which describes Layer 3 path determination in the OSI model?
enables switches to find the best path to a host
enables a router to choose the next hop
determines how a packet is forwarded on the same subnetwork
enables a switch to choose the next hop
23
What is the primary cause of crosstalk?
electrical motors and lighting
electrical noise from other wires in a cable
too much noise in a cable's data signal
cable wires that are too large in diameter
24
What is another name for a multi-port repeater?
hub
host
sequencer
bridge
25
Which of the following is a main function of the presentation layer?
managing applications
data compression
dialogue control
windowing

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