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1. A router is a CSU/DSU device.
a.
True
b.
False
ANSWER:
False
POINTS:
1
REFERENCES:
WAN Devices
QUESTION TYPE:
True / False
HAS VARIABLES:
False
DATE CREATED:
7/19/2019 2:36 PM
DATE MODIFIED:
7/19/2019 2:36 PM
2. T-Carrier lines only require a CSU/DSU on the customer’s side of the connection.
a.
True
b.
False
ANSWER:
False
POINTS:
1
REFERENCES:
Leased Lines
QUESTION TYPE:
True / False
HAS VARIABLES:
False
DATE CREATED:
7/19/2019 2:36 PM
DATE MODIFIED:
7/19/2019 2:36 PM
3. Packet switched WANs use virtual circuits to ensure that packets are delivered reliably and at the agreed-on
bandwidth level.
a.
True
b.
False
ANSWER:
True
POINTS:
1
REFERENCES:
Packet-Switched WANs
QUESTION TYPE:
True / False
HAS VARIABLES:
False
DATE CREATED:
7/19/2019 2:36 PM
DATE MODIFIED:
7/19/2019 2:36 PM
4. Multiprotocol Label Switching (MPLS) supports both IPv4 and IPv6, as well as other network layer
protocols.
a.
True
b.
False
ANSWER:
True
POINTS:
1
REFERENCES:
Packet-Switched WANs
QUESTION TYPE:
True / False
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DATE CREATED:
7/19/2019 2:36 PM
DATE MODIFIED:
7/19/2019 2:36 PM
8. When would you most likely NOT choose to use a leased line connection?
a.
when high-quality, 24/7 access is needed
b.
for mission critical applications
c.
when fast upstream as well as downstream communications is required
d.
when the link is only needed as a backup connection
ANSWER:
d
POINTS:
1
REFERENCES:
Leased Lines
QUESTION TYPE:
Multiple Choice
HAS VARIABLES:
False
DATE CREATED:
7/19/2019 2:36 PM
DATE MODIFIED:
7/19/2019 2:36 PM
9. Which of the following is something X.25 does NOT offer?
a.
SVCs
b.
PVCs
c.
error checking and retransmission
d.
144 Mbps maximum throughput
ANSWER:
d
POINTS:
1
REFERENCES:
Packet-Switched WANs
QUESTION TYPE:
Multiple Choice
HAS VARIABLES:
False
DATE CREATED:
7/19/2019 2:36 PM
DATE MODIFIED:
7/19/2019 2:36 PM
10. What is the local loop, or last mile?
a.
the connection used between central offices
b.
cable between the customer premise equipment and a PC
c.
a line used by ISPs for testing T-carrier signals.
d.
the connection between the demarcation point and the CO
ANSWER:
d
POINTS:
1
REFERENCES:
WAN Equipment
QUESTION TYPE:
Multiple Choice
HAS VARIABLES:
False
DATE CREATED:
7/19/2019 2:36 PM
DATE MODIFIED:
7/19/2019 2:36 PM
Name:
Class:
Date:
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11. You’re the network administrator for a large bean-bag chair company. You are presenting to your supervisor
several reasons to make use of cloud computing for handling data processing. Which answer would be a valid
benefit of using cloud computing?
a.
always on, always available access independent of network status
b.
reduced physical plant costs
c.
increased use of localized resources
d.
decrease in user application training time
ANSWER:
b
POINTS:
1
REFERENCES:
Cloud Computing
QUESTION TYPE:
Multiple Choice
HAS VARIABLES:
False
DATE CREATED:
7/19/2019 2:36 PM
DATE MODIFIED:
7/19/2019 2:36 PM
12. Which of the following terms describes the category of cloud computing in which a customer develops
applications using development tools and infrastructure provided by the service provider?
a.
Infrastructure as a service
b.
Software as a service
c.
Platform as a service
d.
Network as a service
ANSWER:
c
POINTS:
1
REFERENCES:
Platform as a Service
QUESTION TYPE:
Multiple Choice
HAS VARIABLES:
False
DATE CREATED:
7/19/2019 2:36 PM
DATE MODIFIED:
7/19/2019 2:36 PM
13. Which of the following protocols is NOT used for Windows 10 VPN connections?
a.
SMTP
b.
PPTP
c.
L2TP
d.
SSTP
ANSWER:
a
POINTS:
1
REFERENCES:
Remote Access Networking via the Web
QUESTION TYPE:
Multiple Choice
HAS VARIABLES:
False
DATE CREATED:
7/19/2019 2:36 PM
DATE MODIFIED:
7/19/2019 2:36 PM
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Class:
Date:
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14. Which of the following is NOT true about Ethernet WANs?
a.
lower administration
b.
difficult to integrate into LANs
c.
1 Gbps bandwidth
d.
distances over 5 km
ANSWER:
b
POINTS:
1
REFERENCES:
Ethernet WANs
QUESTION TYPE:
Multiple Choice
HAS VARIABLES:
False
DATE CREATED:
7/19/2019 2:36 PM
DATE MODIFIED:
7/19/2019 2:36 PM
15. You have been asked to install a VPN remote access solution using Windows Server. What do you need to
install?
a.
Microsoft Mobile User Service (MMUS)
b.
Windows Server Remote Access (WSRA)
c.
Routing and Remote Access Service (RRAS)
d.
Dialup and Remote Access Services (DRAS)
ANSWER:
c
POINTS:
1
REFERENCES:
Remote Access Networking
QUESTION TYPE:
Multiple Choice
HAS VARIABLES:
False
DATE CREATED:
7/19/2019 2:36 PM
DATE MODIFIED:
7/19/2019 2:36 PM
16. Which one of the following is NOT a typical SONET data rate?
a.
OC-3
b.
OC-48
c.
OC-128
d.
OC-768
ANSWER:
c
POINTS:
1
REFERENCES:
Leased Lines
QUESTION TYPE:
Multiple Choice
HAS VARIABLES:
False
DATE CREATED:
7/19/2019 2:36 PM
DATE MODIFIED:
7/19/2019 2:36 PM
17. What would an Asynchronous Transfer Mode (ATM) network be best suited for?
a.
sending e-mail
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b.
downloading an RFC text file from the IETF web page
c.
transferring large files
d.
carrying voice, data, and time-sensitive information
ANSWER:
d
POINTS:
1
REFERENCES:
Packet-Switched WANs
QUESTION TYPE:
Multiple Choice
HAS VARIABLES:
False
DATE CREATED:
7/19/2019 2:36 PM
DATE MODIFIED:
7/19/2019 2:36 PM
18. Which cloud computing category allows a company to quickly provision additional disk space?
a.
hosted networking
b.
hosted applications
c.
hosted platforms
d.
hosted infrastructure
ANSWER:
d
POINTS:
1
REFERENCES:
Infrastructure as a Service
QUESTION TYPE:
Multiple Choice
HAS VARIABLES:
False
DATE CREATED:
7/19/2019 2:36 PM
DATE MODIFIED:
7/19/2019 2:36 PM
19. Which cloud computing category refers to the use of software hosted on a service provider’s network, and is
usually subscription based?
a.
Software as a service
b.
Networking as a service
c.
Platform as a service
d.
Infrastructure as a service
ANSWER:
a
POINTS:
1
REFERENCES:
Software as a Service
QUESTION TYPE:
Multiple Choice
HAS VARIABLES:
False
DATE CREATED:
7/19/2019 2:36 PM
DATE MODIFIED:
7/19/2019 2:36 PM
20. Which statement about Multiprotocol Label Switching (MPLS) is true?
a.
MPLS is popular because of its ease of use and inexpensive cost.
b.
MPLS works with any Network layer protocol.
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c.
MPLS is dependent on the underlying Data Link layer technology.
d.
MPLS will run over ATM, frame relay, and SONET, but not Ethernet.
ANSWER:
b
POINTS:
1
REFERENCES:
Packet-Switched WANs
QUESTION TYPE:
Multiple Choice
HAS VARIABLES:
False
DATE CREATED:
7/19/2019 2:36 PM
DATE MODIFIED:
7/19/2019 2:36 PM
21. What is the signaling method used to allocate time slots for each channel in a T-carrier line called?
a.
Time Division Multiplexing (TDM)
b.
Frequency Division Multiplexing (FDM)
c.
Time Slotted Modulation (TSM)
d.
Fractional Channel Division (FCD)
ANSWER:
a
POINTS:
1
REFERENCES:
Leased Lines
QUESTION TYPE:
Multiple Choice
HAS VARIABLES:
False
DATE CREATED:
7/19/2019 2:36 PM
DATE MODIFIED:
7/19/2019 2:36 PM
22. The company you work for currently has ISDN service in place. Your supervisor wishes to know what sort
of ISDN service is being used so that better alternatives can be considered. He tells you that the service has two
B-Channels and a D-Channel. What ISDN format do you have?
a.
Primary Rate Interface (PRI)
b.
Basic Rate Interface (BRI)
c.
Basic Rate Extended (BRE)
d.
Plain Old Telephone Service (POTS)
ANSWER:
b
POINTS:
1
REFERENCES:
Circuit-Switched WANs
QUESTION TYPE:
Multiple Choice
HAS VARIABLES:
False
DATE CREATED:
7/19/2019 2:36 PM
DATE MODIFIED:
7/19/2019 2:36 PM
23. The plain old telephone service is a good example of what kind of WAN technology?
a.
packet switched
b.
leased line
c.
VPN over Internet
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d.
circuit switched
ANSWER:
d
POINTS:
1
REFERENCES:
Circuit-Switched WANs
QUESTION TYPE:
Multiple Choice
HAS VARIABLES:
False
DATE CREATED:
7/19/2019 2:36 PM
DATE MODIFIED:
7/19/2019 2:36 PM
24. Although a frame relay connection is established in much the same way that a T1 connection is, which of
the following is an important distinction between the two technologies?
a.
Frame relay is point to point, whereas T1 uses virtual circuits.
b.
T1 uses point to point, while frame relay makes use of virtual circuits.
c.
T1 connections are established using CSU/DSUs. Frame relay connections require a VPN service on
the remote node.
d.
T1 data traffic must all be transmitted in clear text, while frame relay encrypts data automatically and
is more secure.
ANSWER:
b
POINTS:
1
REFERENCES:
Packet-Switched WANs
QUESTION TYPE:
Multiple Choice
HAS VARIABLES:
False
DATE CREATED:
7/19/2019 2:36 PM
DATE MODIFIED:
7/19/2019 2:36 PM
25. Part of SONET’s flexibility comes from its ability to be arranged in several different physical topologies.
Which of the following is NOT a possible SONET topology?
a.
point to point
b.
point to multipoint
c.
fault tolerant bus
d.
fault tolerant ring
ANSWER:
c
POINTS:
1
REFERENCES:
Leased Lines
QUESTION TYPE:
Multiple Choice
HAS VARIABLES:
False
DATE CREATED:
7/19/2019 2:36 PM
DATE MODIFIED:
7/19/2019 2:36 PM
26. ________________ is a PVC packet-switching technology that offers WAN communication over a fast,
reliable, digital link. It was developed from X.25 and ISDN technology.
ANSWER:
Frame relay
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ANSWER:
ATM
POINTS:
1
REFERENCES:
Packet-Switched WANs
QUESTION TYPE:
Completion
HAS VARIABLES:
False
STUDENT ENTRY MODE:
Basic
DATE CREATED:
7/19/2019 2:36 PM
DATE MODIFIED:
7/19/2019 2:36 PM
Match each item with a statement below.
a.
point-to-point protocol
b.
frame relay
c.
Committed Information Rate (CIR)
d.
modem
e.
Data Circuit-terminating Equipment (DCE)
f.
virtual circuit
g.
Data Terminal Equipment (DTE)
h.
Synchronous Optical Network (SONET)
i.
smart jack
j.
SaaS
REFERENCES:
Glossary
QUESTION TYPE:
Matching
HAS VARIABLES:
False
DATE CREATED:
7/19/2019 2:36 PM
DATE MODIFIED:
7/19/2019 2:36 PM
31. a remote access protocol that supports many protocols and is used to carry data over a variety of network
connections
ANSWER:
a
POINTS:
1
32. a point-to-point permanent virtual circuit (PVC) technology that offers WAN communications over a fast,
reliable, digital packet-switching network
ANSWER:
b
POINTS:
1
33. a guaranteed minimum transmission rate offered by the service provider
ANSWER:
c
POINTS:
1
34. a device computers use to convert digital signals to analog signals
ANSWER:
d
POINTS:
1
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Date:
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35. the device that sends data to (and receives data from) the local loop, usually a CSU/DSU or modem
ANSWER:
e
POINTS:
1
36. a logical sequence of connections with bandwidth allocated for a specific transmission pathway
ANSWER:
f
POINTS:
1
37. the device that passes data from the customer LAN to the DCE, usually a router
ANSWER:
g
POINTS:
1
38. a high-speed, baseband digital networking standard that specifies incrementally increasing data rates across
fiber-optic links
ANSWER:
h
POINTS:
1
39. a type of connector for terminating a T1 line that provides diagnostic testing for troubleshooting the
connection
ANSWER:
i
POINTS:
1
40. a category of cloud computing in which a customer pays for the use of applications that run on a service
provider’s network
ANSWER:
j
POINTS:
1
41. Describe how MPLS works.
ANSWER:
MPLS creates connection-oriented virtual circuits with labels assigned to each packet. This
label is used to make packet forwarding decisions, making it unnecessary for routers along
the way to view the contents of the packet.
POINTS:
1
REFERENCES:
Packet-Switched WANs
QUESTION TYPE:
Subjective Short Answer
HAS VARIABLES:
False
STUDENT ENTRY MODE:
Basic
DATE CREATED:
7/19/2019 2:36 PM
DATE MODIFIED:
7/19/2019 2:36 PM
42. What is the difference between the two types of virtual circuits?
ANSWER:
Switched virtual circuits are established when needed and then terminated when finished,
while permanent virtual circuits create pathways that exist even when not in use.
POINTS:
1
REFERENCES:
Packet-Switched WANs
Name:
Class:
Date:
Name:
Class:
Date:
500 GB of space without worrying about how that space is actually provided. In addition, if a
46. What is multiplexing, and where is it used?
ANSWER:
Multiplexing allows for multiple communication streams to travel over the same cable
segment simultaneously. T-carrier lines make extensive use of multiplexing to achieve their
speeds, but they require a CSU/DSU at the end of each link for the multiplexing process.
POINTS:
1
REFERENCES:
Leased Lines
QUESTION TYPE:
Subjective Short Answer
HAS VARIABLES:
False
STUDENT ENTRY MODE:
Basic
DATE CREATED:
7/19/2019 2:36 PM
DATE MODIFIED:
7/19/2019 2:36 PM
47. What is an Ethernet WAN and what are its strong points?
ANSWER:
Many service providers offer Ethernet WANs over fiber-optic cabling. Two of the common
names for this technology are Metropolitan Ethernet (Metro Ethernet or just MetroE) and
Ethernet over MPLS (EoMPLS). Because most LAN infrastructures are based on Ethernet,
Ethernet WANs allow for reduced administration and easier integration of the WAN into the
LAN. A typical Ethernet WAN link can operate at 1 GBps and range in distance from 5 km
to over 70 km.
POINTS:
1
REFERENCES:
Ethernet WANs
QUESTION TYPE:
Subjective Short Answer
HAS VARIABLES:
False
STUDENT ENTRY MODE:
Basic
DATE CREATED:
7/19/2019 2:36 PM
DATE MODIFIED:
7/19/2019 2:36 PM
48. Why would you want to deploy a WAN over the Internet?
ANSWER:
Using VPN connections over inexpensive Internet connections is a popular WAN alternative.
VPN connections can be used for secure communication from branch offices to the main
office. VPNs offer some advantages over other WAN methods: inexpensive, convenience,
security, and flexibility.
POINTS:
1
REFERENCES:
WANs over the Internet
QUESTION TYPE:
Subjective Short Answer
HAS VARIABLES:
False
STUDENT ENTRY MODE:
Basic
DATE CREATED:
7/19/2019 2:36 PM
DATE MODIFIED:
7/19/2019 2:36 PM
49. Describe how a company can use IaaS and how it might be a benefit to that company.
ANSWER:
Infrastructure as a service (IaaS) allows companies to use a vendor’s storage or even entire
virtual servers as needed. Traditionally, if a company needed more storage to house a new
database, it had to buy a new hard drive. By using IaaS, the company simply pays for another
Name:
Class:
Date:
customer needs another server to handle its application workload, it simply pays for the
amount of processing and storage the additional server actually requires instead of the
physical device. In general, cloud computing offers a flexible array of services that can
complement or replace an IT department’s existing resources.
POINTS:
1
REFERENCES:
Infrastructure as a Service
QUESTION TYPE:
Subjective Short Answer
HAS VARIABLES:
False
STUDENT ENTRY MODE:
Basic
DATE CREATED:
7/19/2019 2:36 PM
DATE MODIFIED:
7/19/2019 2:36 PM
50. Describe the private cloud vs the public cloud.
ANSWER:
Public cloud technologies are implemented by third-party companies providing services over
the public Internet to paying subscribers. However, many companies deliver cloud services to
their own employees through the use of virtualization technologies, such as VMware and
Microsoft Hyper-V. VDI, cloud storage, and SaaS are commonly accessed as private cloud
services, deployed from the company’s own data center instead of using a third party.
POINTS:
1
REFERENCES:
Private Cloud versus Public Cloud
QUESTION TYPE:
Subjective Short Answer
HAS VARIABLES:
False
STUDENT ENTRY MODE:
Basic
DATE CREATED:
7/19/2019 2:36 PM
DATE MODIFIED:
7/19/2019 2:36 PM