Domain 3

Question 1

Ethernet running at 1 Gbps is known as _________Ethernet.

Question 2

For any network connection, the speed is only as high as the____________ device connected.

Question 3

Uplink ports can handle both straight-through and __________cables.

Question 4

A managed switch can be __________, while an unmanaged switch is a plug and play switch.

Question 5

In a VLAN setup, a____________ line connects two physical switches

Question 6

A layer 3 switch has both switching and __________capabilities.

Question 7

___________is the act of having multiple devices share a workload.

Question 8

Backplane speed is the total____________ a switch is capable of at any given time.

Question 9

The_________________method of sending frames involve knowing a frame header with a destination MAC
address and then sending the frame to that destination.

Question 10

Hubs send a data signal to every device __________to the hub rather than forward data to a single device.

Question 11

In Hyper-V, virtual switches can have external, internal, and__________ connections

Question 12

A spanning tree algorithm transmits__________ to locate, identify, and destroy redundant links.

Question 13

An 802.11n router using a Fast Ethernet port will transmit data out of that port at a maximum of________ Mbps.

Question 14

Directly connected routes are routes that have______ devices within the route.

Question 15

The __________command adds a static route to a routing table in Windows.

Question 16

In dynamic routing, routing_________ are formed and updated as routers enter and exit a network
infrastructure.

Question 17

RIP uses __________to determine the best route for data packets.

Question 18

The IPv4 address for a default route is________

Question 19

Many routing protocols determine routes based on the routing______

Question 20

Routing tables use_______ within a router for storage.

Question 21

Users can utilize a___________ to forward the connection from a public facing router to a PC that does not have a public IP address.

Question 22

A physical network can easily be broken up into multiple VLANs to create multiple________ networks.

Question 23

On a Windows server, _______allows one to connect to a corporate network without the need for a
VPN.

Question 24

QoS controls how__________ is handled on a network.

Question 25

As routing tables change, routers must receive the most recent updates to the overall network________

Question 26

Most twisted-pair cables can carry signals for up to__________ meters.

Question 27

____________fiber cable can carry multiple rays of light over 600 meters.

Question 28

Twisted-pair cables have twisted pairs to help avoid________

Question 29

_______cables can carry signals at 10 Gbps for up to 55 meters.

Question 30

A __________cable connects unlike devices to each other, such as a PC to a router.

Question 31

Twisted-pair cables are subject to _____________, which occurs when a signal on one pair of wires interferes
with another wire or pair of wires.

Question 32

Switches have many characteristics that define their capabilities and to what extent they can manage traffic within a network. The amount of uplink ports, regular ports, and the speed of all those ports help shape what a switch can do in handling a network workload. For the exam, know these switch characteristics and how they are defined.

Question 33

What does a switch learn about devices that connect to it?

Question 34

What speed is Fast Ethernet?

Question 35

A switch port shows a yellow LED light when a cable is connected to it. What does this most likely indicate?

Question 36

What separates uplink ports from typical ports on a switch?

Question 37

Two devices are connected. One is using Fast Ethernet and the other Gigabit Ethernet. What will be the speed of the connection?

Question 38

In addition to the physical characteristics of a switch, switches are defined by their ability to be managed, what they do in the role of a VLAN, and whether they perform just switching tasks or routing tasks as well.

Question 39

What is the difference between a managed switch and an unmanaged switch?

Question 40

You have a single switch but need for the switch to host two networks. What can you create on the switch?

Question 41

What does a Layer 3 switch have that a Layer 2 switch does not have?

Question 42

Which types of addresses on devices do switches learn?

Question 43

Besides redundancy, what is an added benefit of having multiple switches work as one?

Question 44

To finish this set of topics on switches, it is important to know the concepts of backplane speed, switching types, the difference between a switch and a hub,
and the role of virtual switches.

Question 45

A switch has 48 Fast Ethernet ports. What is the backplane speed of the switch?

Question 46

Which switching type receives a data frame, checks it for errors, and then forwards the frame?

Question 47

Which switching type sends a frame to a destination based on knowing the frame header with the destination MAC address?

Question 48

What is a good use for a hub?

Question 49

What does a hub not store that a switch stores?

Question 50

In Hyper-V, what are the three types of virtual switches?

Answer 50

a.
b.
c.

Question 51

When working with switches, users occasionally encounter issues such as loops. Network loops occur when information is routed through the same path over and over, such as when a device is accidentally plugged into itself.

A Spanning Tree Protocol (STP) helps switches combat loops and broadcast storms. STPs utilize a spanning tree algorithm (STA) to search for, find, and
destroy redundant links.

Question 52

Indicate whether the following statements are true or false.

Answer 52

a. ______Non-physical loops occur when hardware such
as a smartphone is accidentally plugged into itself.
b. ______A broadcast storm is a type of loop in which
broadcasts flood through a switch, eventually overloading it.
c. ______A spanning tree protocol locates broadcast storms via Broadcast Protocol Data Units.
d. ______In a physical loop, switches are prone to receiving multiple copies of the same frame of
data as it goes through a network.

Question 53

Whereas switches direct traffic within networks, routers direct traffic between networks. Speed characteristics of routers are like those found on switches. For the exam, users will want to know those characteristics and the distinctions among the basic types of routes: static, dynamic, and directly connected.

Question 54

A wireless router has multiple Fast Ethernet ports. At what speed will data transfer out of these ports?

Question 55

A route with one hop is called a _____ route.

Question 56

Name one dynamic routing protocol:

Question 57

There are several types of dynamic routes used to route traffic. Routing Information Protocol (RIP) and Open Shortest Path First (OSPF) are two of the
more widely used dynamic routing protocols and they are mentioned in the exam topics, so know the differences between the two protocols.

Question 58

In addition to routing protocols, default routes and routing tables are also important to know for the exam. Most routing tables will show a default route,
which is the route through which traffic is run if a match for a packet is not found elsewhere in a routing table.

Question 59

For each routing characteristic, indicate if the characteristic defines RIP
or OSPF.

Answer 59

a. ______A distance-vector routing protocol
b. ______A link-state routing protocol
c. ______Uses hop counts to determine the best route for data packets

Question 60

What is the role of the metric setting in a route?

Question 61

What do routers use to store routing tables?

Question 62

On a Windows device, open a command prompt….Run the command to show a routing table. What is the default route??

Question 63

Port forwarding allows a specific port to be used to connect to a specific device within a network. It enables a user to remotely access resources such as files and folders on their computer from the internet.

Question 64

Indicate whether the following statements are true or false.

Answer 64

a. ____________The Remote Desktop port can be used to
forward a connection from a router to a home PC.
b. ____________Users can add or remove port forwards by accessing the features of their router.
c. ____________A port forward is required to connect a router to a device that lacks a private IP address.

Question 65

Why is it a best practice for users to remove unneeded port forwards?

Question 66

Network segmentation is the act of physically and/or logically breaking up a network into smaller networks. Permissions are an important aspect of network
segmentation and can help determine how users partition networks.

Question 67

A network ___________________is defined as a group that is isolated from the others in a network.

Question 68

A computer training center contains three classrooms, a staff office, and a repair shop in the back of the building. How many logical networks should an administrator create for the center?__________
A. Two
B. Three
C. Four
D. Five

Question 69

A university campus’ network encompasses several buildings: a registrar’s office, health center, library, auditorium, and student hall. How many physical networks should an administrator create for the campus?_______
A. Two
B. Three
C. Four
D. Five

Question 70

In addition to routing types and routing tables, routers can perform other duties, including Quality of Service (QoS). Some routing can be performed through routing software.

Question 71

What is used to take data requests from private IP addresses and send the requests through public IP addresses?

Question 72

Which command is used on a Windows device to show a routing table?

Question 73

Which Windows Server feature needs to be installed to enable routing through a Windows Server?

Question 74

Which feature is used to limit bandwidth on a specific app?

Question 75

Which are the five specific problems with data transfers that can be monitored through QoS?

Answer 75

a.
b.
c.
d.
e.

Question 76

Convergence is a process in which a root bridge router learns and distributes the topology of a network to the remaining routers on the network.

Question 77

Indicate whether the following statements are true or false.

Answer 77

a. _________Changes to a physical topology can lead to a permanent slowdown in network performance.
b. _________As routers are added to networks,
configurations change, requiring the need for convergence.
c. _________Convergence can take place over several hours or days, depending on the updates.
d. _________Normal traffic flow resumes once convergence has been completed.
e. _________Routing tables can be updated manually or automatically.

Question 78

For wired networks, the two main cable types used are Ethernet and fiber optic cables. Ethernet cables are generally used more in LANs while fiber optic cables tend to be used more in WANs. For the exam, it is important to know the characteristics and limitations of each type of cable.

Question 79

What is the normal distance limitation for signal transmission for Ethernet cables?

Question 80

Which fiber optic cable mode carries one ray of light over long distances?

Question 81

Which type of Ethernet cable has four twisted pairs of wires that run throughout the cable?

Question 82

Which type of cable is required for cable running through walls or in between floors?

Question 83

What is a main disadvantage of using fiber optic cable?

Question 84

Ethernet cables have categories or CATs for short. These categories define the speed, and in some cases, distance a signal will travel on an Ethernet cable. Keep in mind that the speed given is top speed and actual speed of transmission will depend on several factors, including overall traffic and the speed capabilities of devices being used.

Question 85

Match the CAT cable to the characteristic.
A. CAT3
B. CAT5
C. CAT5e
D. CAT6
E. CAT6a

Answer 85

a. _______Transmits data at 10 Gbps for 55 meters
b. _______Used in both 100 Mbps and 1 Gbps capacities
c. _______Carries data at 10 Mbps
d. _______Capable of Fast Ethernet
e. _______Transmits data at 10 Gbps for 100 meters

Question 86

Regarding cable configuration, it is important for users to know the difference between straight-through and crossover cables. In a straight-through configuration, cables are assigned to the same pins on each end. For example, if one side of the cable is connected to Pin 1, then the other end is also assigned to Pin 1. A straight-through cable connects unlike devices.

Question 87

In a crossover configuration, cables are also assigned to pins, but with the key difference that lines are crossed. For example, Pin 1 is crossed with Pin 3, while Pin 2 is crossed with Pin 6. For twisted-pair Ethernet cables, there are two main wiring standards: 568a and 568b. A crossover cable connects like devices.

Question 88

A __________cable represents most Ethernet cables.

Question 89

Crossover cables help avoid ________of data when like
devices are connected.

Question 90

In a crossover cable configuration,__________ wires primarily used for transmission are crossed over so data can transmit freely between devices.

Question 91

Complete the table by filling in the correct color code for each standard.

568a 568b
Pin 1: a. _____________ White/orange
Pin 2: Green b.__________
Pin 3: c.__________ d.__________
Pin 4: Blue Blue
Pin 5: e.__________ White/blue
Pin 6: Orange f.__________
Pin 7: g.__________ White/brown
Pin 8: Brown Brown

Answer 91

568a 568b
Pin 1: a. _____________ White/orange
Pin 2: Green b.__________
Pin 3: c.__________ d.__________
Pin 4: Blue Blue
Pin 5: e.__________ White/blue
Pin 6: Orange f.__________
Pin 7: g.__________ White/brown
Pin 8: Brown Brown

Question 92

For wireless networks, channel settings can be important depending upon the frequency on which the network is running. Security settings, such as the SSID, can be adjusted. Both wired and wireless networks should be set up to avoid susceptibility to interference and interception as much as possible.

Question 93

A wireless network operating on the 2.4 GHz frequency should have all its devices on which three channels?

Question 94

What can be done to the SSID on a wireless network to help increase the security of the network?

Question 95

Name two causes of signal interference on a wireless network:

Answer 95

a.
b.

Question 96

What should be done with data before it is transmitted as to avoid the interception of data?

Question 97

A signal on one pair of wires in a twisted-pair cable is interfering with another wire in the same cable. What is taking place?