How JustAnswer Works:

  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.

Ask namstech Your Own Question

namstech
namstech, Electrical Engineer
Category: Homework
Satisfied Customers: 2126
Experience:  M.S. Signals and Information Processing
31303650
Type Your Homework Question Here...
namstech is online now
A new question is answered every 9 seconds

A backbone network is a high-speed network that connects

Resolved Question:

70. A backbone network is a high-speed network that connects many networks.
A) True
B) False

71. Switches:
A) learn addresses by reading the source and destination addresses
B) operate at the physical layer only
C) connect two ore more network segments that use different data link protocols
D) connect two or more network segments that use different network protocols
E) have become more popular than layer 2 switches

72. ____________ routers can understand different network layer protocols.
A) Multiprotocol
B) 3270 emulation
C) ASCII/EBCDIC
D) Asynchronous
E) Bridge-

73. Which of the following is a fundamental backbone network architecture?
A) Bridged backbone
B) Virtual LAN
C) Hubbed backbone
D) Gatewayed backbone
E) Virtual backbone

74. A __________ type of BN has a star topology with one device, such as a switch, at its center.
A) Bridged backbone
B) Virtual LAN
C) Hubbed backbone
D) Switched backbone
E) Routed backbone

75. Which of the following is not true about multi-switch VLANs?
A) Several switches are used to build a VLAN
B) The switches in the VLAN can send packets among themselves in a way that identifies the VLAN to which the packet belongs.
C) In some multi-switch VLANs, the Ethernet packet is modified based on the emerging IEEE 802.1q standard.
D) In some multi-switch VLANs, a new VLAN packet encapsulates the Ethernet packet.
E) All of the above are true statements.

76. Network demand will not be reduced by:
A) restricting (or moving) applications such as desktop videoconferencing
B) using network devices to ensure that broadcast messages do not go to other networks
C) encouraging the use of applications such as medical imaging
D) sending status information to all computers on all LANs in the backbone network
E) restricting (or moving) applications such as multimedia

77. The _________ is the part of the backbone that connects the different backbones together. A) Access layer
B) Distribution layer
C) Core layer
D) Privacy layer
E) Switched layer

78. It appears that the use of _____ is decreasing in backbones while the use of ____ is increasing.
A) WLAN, ATM
B) Ethernet, ATM
C) IEEE 802.1q, ATM
D) ATM, Ethernet
E) 10GbE, Ethernet

79. In building Wide Area Networks, many organizations do not build their own long distance communication circuits
A) True
B) False

80. Adoption of narrowband ISDN in North America has been:
A) fast
B) slow
C) rapid
D) non existent, since it is not offered in North America
E) none of the above

81. A ________ geometric layout connects all computers in a closed loop, with each computer linked to the next usually with a series of point-to-point dedicated circuits.
A) bus design
B) star design
C) full mesh design
D) ring design
E) partial mesh design

82. In a ring design WAN,
A) failure in one circuit means that the network can most likely continue to function
B) failure in one circuit always means that the network will cease to function
C) failure in one computer always means that the network will cease to function
D) failure in one circuit means that there will not be any increased traffic delays in the network
E) failure in one computer always means that messages will stop at that computer since it would be impossible to re-route traffic

83. The data rate for a T-1 circuit in North America is:
A) 1.544 Mbps
B) 6.312 Mbps
C) 44.376 Mbps
D) 274.176 Mbps
E) 1.544 Gbps

84. Which of the following is not a benefit of packet switched services?
A) The data transmission rates tend to be lower than dial-up or dedicated circuits.
B) You don't have to set up dedicated circuits between each end point from and to which you wish to transmit data and/or voice.
C) You have the flexibility to send data through a temporary circuit between two connections that will be disconnected as soon as the digital transmission is completed.
D) All circuits are less susceptible to a great deal of noise because they are digital.
E) You don't have to specify all the interconnecting services you need for your WAN when you buy the service.

85. Which of the following is a primary advantage of a VPN?
A) low cost
B) inflexibility
C) unpredictable traffic congestion
D) security
E) complexity to the user

86. Dynamic routing:
A) imposes an overhead cost by increasing network traffic
B) decreases performance in networks which have many possible routes
C) decreases performance in networks with “bursty” traffic
D) should be used in 80 to 90 percent of total networks' capacity
E) is another term for static routing in WANs

87. Security on a network not only means being able to prevent a hacker from breaking into your computer but also includes being able to recover from temporary service problems or from natural disasters.
A) True
B) False

88. An example of _____ of data would be if a computer virus eliminated files on that computer. A) disruption

Submitted: 3 years ago.
Category: Homework
Expert:  namstech replied 3 years ago.

Hi!

Here are the solutions.

70. A) True

71. A) learn addresses by reading the source and destination addresses

72. A) Multiprotocol

73. B) Virtual LAN

74. B) Virtual LAN

75. E) All of the above are true statements

76. C) encouraging the use of applications such as medical imaging

77. C) Core layer

78. D) ATM, Ethernet

79. B) False

80. B) slow

81. D) ring design

82. B) failure in one circuit always means that the network will cease to function

83. A) 1.544 Mbps

84. A) The data transmission rates tend to be lower than dial-up or dedicated circuits

85. A) low cost

86. A) imposes an overhead cost by increasing network traffic

87. A) True

If you need to ask additional questions, you can upload them in a single file at www.wikisend.com

I hope this helps.

Thanks

namstech, Electrical Engineer
Category: Homework
Satisfied Customers: 2126
Experience: M.S. Signals and Information Processing
namstech and 10 other Homework Specialists are ready to help you
Customer: replied 3 years ago.

Thanks! Trying to upload file to http://www.wikisend.com, but I'm getting an error HTTP 500.

500

 

Expert:  namstech replied 3 years ago.
You can try uploading at www.mediafire.com.

Once the file is uploaded, provide me with the download link.

Thanks
Customer: replied 3 years ago.
Will do!
Expert:  namstech replied 3 years ago.
Hi.

The 2nd and 3rd link files are SHS files which I could not open. Can you send the questions in Word document format.

Thanks
Customer: replied 3 years ago.

I combined file 2 and 3, here's the link: http://www.mediafire.com/?gq7goyvmlm29z2j

Thanks!

Expert:  namstech replied 3 years ago.
THIS ANSWER IS LOCKED!
You can view this answer by clicking here to Register or Login and paying $3.
If you've already paid for this answer, simply Login.
namstech, Electrical Engineer
Category: Homework
Satisfied Customers: 2126
Experience: M.S. Signals and Information Processing
namstech and 10 other Homework Specialists are ready to help you

JustAnswer in the News:

 
 
 
Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.
 
 
 

What Customers are Saying:

 
 
 
  • Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help. Mary C. Freshfield, Liverpool, UK
< Last | Next >
  • Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help. Mary C. Freshfield, Liverpool, UK
  • This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!! Alex Los Angeles, CA
  • Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult. GP Hesperia, CA
  • I couldn't be more satisfied! This is the site I will always come to when I need a second opinion. Justin Kernersville, NC
  • Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around. Esther Woodstock, NY
  • Thank you so much for taking your time and knowledge to support my concerns. Not only did you answer my questions, you even took it a step further with replying with more pertinent information I needed to know. Robin Elkton, Maryland
  • He answered my question promptly and gave me accurate, detailed information. If all of your experts are half as good, you have a great thing going here. Diane Dallas, TX
 
 
 

Meet The Experts:

 
 
 
  • Manal Elkhoshkhany

    Tutor

    Satisfied Customers:

    4522
    More than 5000 online tutoring sessions.
< Last | Next >
  • http://ww2.justanswer.com/uploads/BU/BusinessTutor/2012-2-2_115741_Kouki2.64x64.jpg Manal Elkhoshkhany's Avatar

    Manal Elkhoshkhany

    Tutor

    Satisfied Customers:

    4522
    More than 5000 online tutoring sessions.
  • http://ww2.justanswer.com/uploads/ComputersGuru/2010-02-13_051118_Photo41.JPG LogicPro's Avatar

    LogicPro

    Engineer

    Satisfied Customers:

    3458
    Expert in Java C++ C C# VB Javascript Design SQL HTML
  • http://ww2.justanswer.com/uploads/LI/lindaus/2012-6-10_04811_IMG20120609164157.64x64.jpg Linda_us's Avatar

    Linda_us

    Finance, Accounts & Homework Tutor

    Satisfied Customers:

    3124
    Post Graduate Diploma in Management (MBA)
  • http://ww2.justanswer.com/uploads/chooser77/2009-08-18_162025_Chris.jpg Chris M.'s Avatar

    Chris M.

    M.S.W. Social Work

    Satisfied Customers:

    2385
    Master's Degree, strong math and writing skills, experience in one-on-one tutoring (college English)
  • http://ww2.justanswer.com/uploads/JawaadAhmed/2009-6-27_12137_SIs_SHadi.jpg F. Naz's Avatar

    F. Naz

    Chartered Accountant

    Satisfied Customers:

    1988
    Experience with chartered accountancy
  • http://ww2.justanswer.com/uploads/JK/jkcpa/2011-1-16_182614_jkcpa.64x64.jpg Bizhelp's Avatar

    Bizhelp

    CPA

    Satisfied Customers:

    1876
    Bachelors Degree and CPA with Accounting work experience
  • http://ww2.justanswer.com/uploads/avremote/photoa.jpg Seanna's Avatar

    Seanna

    Tutor

    Satisfied Customers:

    1781
    3,000+ satisfied customers, all topics, A+ work
 
 
 

Related Homework Questions

Chat Now With A Tutor
namstech
namstech
Tutor
2126 Satisfied Customers
M.S. Signals and Information Processing