ch 9 Flashcards

1
Q

SMCS School has hired you to set up an Internet connection within the school premises. The Internet connection will be utilized by both the junior and senior sections of the school situated in two different buildings on the same campus. Which of the following types of network will you install in this scenario?

A

Campus Area Network (CAN)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

As a network administrator, a client has approached you to set up the network for MKV, a software company. The company requires sufficient amounts of data for both uploading and downloading purposes; however, it prefers a connection that has better download speed. Which of the following DSL varieties do you think is best suited for such a requirement?

A

VDSL (Very high rate DSL or Variable DSL)

is a type of DSL. It is faster than ADSL and also asymmetric. Has faster download speeds than upload speeds. EX: for companies located close to a telephone company CO (Central Office) (in the middle of a metropolitan area).

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

You are employed as a network engineer. While setting up a client’s connection, the client requests you to display trunks configured on a switch. Which of the following commands will you use in this scenario?

A

sh int tr

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

You are working as a network engineer at Krofter Securities. The organization uses Cisco’s Linux OS in all of its workstations. The network administrator has asked you to use the route utility to delete some static routes used by the router. Which of the following commands will you use in this scenario?

A

route

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Which of the following commands can be used to change a device’s name?

A

hostname

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Which of the following traverses a significant distance and usually supports very high data throughput?

A

WAN

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Browski is a company that deals with SD-WAN (software-defined wide area network) units. The management of Browski wants to present an audio-video presentation at one of the network exhibitions to demonstrate its new product. As a network administrator working there, you have been asked to go through a few pointers in the presentation to verify the accuracy of the content. Analyze if any of these aspects do not apply to SD-WAN.

A

SD-WAN can be more expensive than leased lines.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

As a network analyst, you have to separate the digital communication of data in a GSM network. Which of the following will you use in this scenario?

A

TDMA (Time Division Multiple Access)

is a method of multiplexing in which signals from several sources on a channel are separated by timeslots.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Crom Breweries is an old client of HW Internet Solutions. Crom’s IT department calls HW Solutions to inform that the interface is down. HW Solutions sends a network analyst to check the situation. The network analyst assumes that an employee must have shut down the interface. He applies the show interface command to get an overview of all the devices interfaces. Analyze which of the following will help the network analyst to know whether the interface was shut down.

A

Link State

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Which form of communication is well suited to users who receive more information from the network than they send to it?

A

ADSL (Asymmetric DSL)

is the most common form of DSL. Faster download speeds than upload speeds. EX: Surfing the Web, watching a movie.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

XYZ Ltd. is a company that has 12 regional offices around the world. All the major operations of the company are carried out from the headquarters based in New York. XYZ Ltd. has approached you, a network facilitator, to install a WAN service that can manage network configurations at multiple locations throughout the world. Which of the following WAN services would you advise to XYZ Ltd. in this scenario?

A

SD-WAN (Software-Defined Wide Area Network)

abstracted, centralized control of networking devices that manage network functions across a diverse infrastructure.

*Pic: SD-WAN supports many underlying WAN connectivity technologies.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Beevan works as a network analyzer for an ISP. The network manager has asked him to use a protocol for the routers that can scan beyond the home territory and can instruct a group of routers to prefer one route over other available routes. Analyze which of the following should be used in this scenario.

A

BGP (Border Gateway Protocol)

dubbed the “Protocol of the Internet,” this path-vector routing protocol is the only current EGP (Exterior Gateway Protocol) and is capable of considering many factors in its routing metrics.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Bradley has been running a business in his garage for over a period of 10 years. He plans on expanding the business by opening up three new offices in three different cities. Since he has accumulated sufficient profits to move to a larger office space, he plans to upgrade his network connection to one with a dedicated and symmetrical bandwidth. Bradley approaches Mantle Solutions, an ISP. Which of the following options should be offered by the ISP in this term-4scenario?

A

Leased Lines

dedicated Internet bandwidth provided over fiber-optic connections.

*Pic: Each location needs its own Leased Line

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Which of the following devices serves as the endpoint for a dedicated connection between an ISP and a customer?

A

CSU/DSU (Channel Service Unit/Data Service Unit)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

You are working as an executive for a cable company. A client raises a request to set up a network that uses fiber-optic cabling to connect your company’s distribution center to distribution hubs and then to optical nodes near its customers. From the following network options, which one would you recommend in the given scenario?

A

HFC (Hybrid Fiber Coaxial)

either fiber-optic or coaxial cable then connects a node to each customer’s business or residence.

*Pic: HFC Infrastructure

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

You are employed as a network engineer. While setting up a client’s connection, the client requests you to display the concise network layer information of the device interface that is being installed. Which of the following commands will you use in this scenario?

A

sh ip int br

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

You are working as a network engineer with an ISP. A query has come to you from a client who requires a guarantee of minimum uptime percentages if the service goes down. Which of the following will you choose in this scenario?

A

DIA

18
Q

You, as a network engineer, have recently established a network connection for three separate department buildings in a university. One of the departments has complained that the signal strength it receives is not the same as the signal strength the other two buildings receive. Which of the following will you use in this scenario?

A

Line Drivers

19
Q

Nathan has plans of opening a call center. He will require a network connection that will have a bare minimum of 3 Gbps upstream and at least 8 Gbps downstream throughput. Analyze which of the following will provide a solution to Nathan.

A

Using a DOCSIS 4.0 for maximum throughput.

DOCSIS (Data Over Cable Service Interface Specifications). Cable broadband was standardized by an international, cooperated effort orchestrated by CableLabs that yielded a suite of specifications called DOCSIS. The newest standard, 4.0, allows for symmetric multi-gigabit speeds up to 10 Gpbs downstream and 6 Gpbs upstream.

20
Q

Which of the following is a more intelligent version of an NIU (network interface unit)?

A

Smartjack

are able to loop ISP’s signal back to CO (Central Office) for testing.

21
Q

White Hawks runs a baseball stadium, and it would like to set up a network that has a reasonable level of availability and effectiveness so that fans can receive a close and strong signal throughput when they watch a game. Analyze which of the following statements will help in understanding why a 5G service is ideal in this scenario.

A

The Cell Density for the network must be close.

22
Q

You are currently working as a network engineer at GHP Ltd. The network administrator tells you to change a default route and apply the best route available so that the path to the destination can be shortened. Which of the following will help you in doing so?

A

Routing Cost

the more desirable the path, the lower its cost.

23
Q

A network administrator has asked Robin, a network engineer, to use OSPF (Open Shortest Path First) along with RIP (Routing Information Protocol) on an edge router in a network so that it demands more memory and CPU power for calculations but keeps network bandwidth to a minimum with a very fast convergence time. Identify and analyze which characteristic of OSPF signifies this.

A

Low Overhead, Fast Convergence

-OSPF (Open Shortest Path First) is an IGP (Interior Gateway Protocol) and link-state routing protocol that improves on some of the limitations of RIP (Routing Information Protocol) and can coexist with RIP on a network.

-Overhead: the burden placed on the underlying network to support a routing protocol.

-Convergence Time: the time it takes for routers on a network to recognize and adjust to configuration changes or a network outage.

24
Q

Your network administrator has asked you to change the subnet mask of the Cisco router used in the organization. Which of the following Cisco CLI modes would you apply in this scenario?

A

Interface Configuration

25
Q

Moses wants to update the interface of a router. He plans on having a check on the current running configuration file and then wants to copy the running configuration file to the startup configuration file. Analyze which CLI mode Moses must use in this scenario.

A

Use the privileged EXEC mode to apply the changes

26
Q

Global ISP has received the tender for a project that requires the company to run a fiber connection to provide Internet connection to 120 families in an area simultaneously. Analyze which of the following would be feasible for Globe ISP in this scenario.

A

Providing the connection using FTTN (Fiber-to-the-Node or Fiber-to-the-Neighborhood)

is a nearby service junction that serves a few hundred customers.

27
Q

Which of the following commands lists a router’s routing table information?

A

show ip route

28
Q

Examine the following circumstances as a network analyst and analyze in which of the following conditions MANs (metropolitan area networks) cannot be useful.

A

Connecting a clothing manufacturer to sell its products to customers worldwide

29
Q

Fox Agro, a small business, faces network congestion and connection failures, which affect the network. As a result, the quality of performance of the unit gets adversely affected. You are appointed as a network administrator to determine the best solution to this problem. Which type of routing path will you use to solve this problem?

A

Dynamic Route

is a route automatically calculated by the router to determine the best path between two networks. As dynamic routes are identified and calculated, this information is collected in a routing table.

30
Q

Which of the following devices contains ports to connect both to an incoming telephone line and to a computer or network connectivity device?

A

DSL Modem

31
Q

Which of the following statements about MPLS (multiprotocol label switching) is not true?

A

MPLS does not offer any decreased latency.

32
Q

Mr. X wants to use cellular technology that offers at least 5 Mbps of download speed. He consults you about this. Which of the following cellular technologies will you suggest?

A

5G

33
Q

You are working as a technical specialist for an ISP. The network administrator has asked you to set up a router for a client with a routing protocol that will use a distance-vector algorithm and is limited to 15 hops. Which of the following will you use?

A

RIPv2 (Routing Information Protocol, Version 2)

is an updated version of the original RIP routing protocol that generates less broadcast traffic and functions more securely than its predecessor

34
Q

Which of the following refers to any router outside an organization’s AS(autonomous system), such as a router on the Internet backbone?

A

Exterior Router

is a router that directs data between autonomous systems.

35
Q

LTE (Long-Term Evolution) and LTE-A (LTE advanced) are variations of which generation of cellular network?

A

Fourth Generation (4G)

is a mobile phone service that is characterized by an all-IP network for both data and voice transmission and throughput of 100 Mbps up to 1 Gbps.

36
Q

You are working as a network analyzer for an ISP. A client has approached you to set up a network connection for a bank with offices around the state. The network needs to connect these offices with each other in order to gather transaction and account information into a central database. Which of the following connections will you provide in this scenario?

A

WAN

37
Q

Which of the following IGPs supports large networks, calculates more efficient best paths than RIPs, and uses algorithms that prevent routing loops?

A

OSPF (Open Shortest Path First)

38
Q

You are working as a network engineer for an ISP. You have successfully set up a home Internet connection for a client. The ISP requires the network engineers to provide a document with specifications and tests that the customer can run on their own to check various aspects of their connectivity. However, in the document that you provided you forgot to mention the functionality of speedtest.net in the document. So, the client calls you with a query about the use of speedtest.net. Which of the following will be your reply to the client in this scenario?

A

It is used for bandwidth speed tests.

39
Q

Identify which router connects an autonomous system with an outside network, also called an untrusted network.

A

Edge Router

40
Q

An ISP’s headquarters is located in Philadelphia, and it has a branch office in Canada. The ISP wants to ship an edge device to the branch location where a non-technical person can plug in the device without any configuration needed on-site. Which of the following should be used in this scenario?

A

SD-WAN