Question 1 of 25
Hints left: 3
Q1
An international standard, multilevel set of protocols to promote compatibility among telecommunications networks. Select the best fit for answer:
Q2
Many large organizations with their offices in different countries of the world connect their computers through telecommunication satellites and telephone lines. Such a communication network is called
Q3
A network which is used for sharing data, software and hardware among several users owning microcomputers is called
Q4
You are working with a network that has the network ID 10.9.0.0 and contains 73 networks. In the next year, you will be adding an additional 27 branch offices to your company. For simplified management, you want to keep the most possible hosts per subnet. Which subnet mask should you management, you want to keep the most possible hosts per subnet. Which subnet mask should you use?
Q5
Alice is setting up a small network in her home so that she can study for her MCSE exams. She doesn't have a lot of money to spend on hardware, so she wants to use a network topology that requires the least amount of hardware possible. Which topology should she select?
Q6
The CCITT Recommendation X.25 specifies three layers of communications:
Q7
A global network of millions of business, government, educational, and research networks; computer systems; database; and end users. Select the best fit for answer:
Q8
In geosynchronous orbit, satellite
Q9
A group of 2m - 1 routers are interconnected in a centralized binary tree, with router at each tree node. Router I communicate with router J by sending a message to the root of the tree. The root then sends the message back down to J. Then find the mean router-router path length.
Q10
What does 192 translate to in binary?
Q11
You are working with a network that is 172.16.0.0 and would like to support 600 hosts per subnet. What subnet mask should you use?
Q12
What does 240 translate to in binary?
Q13
A T-switch is used to
Q14
Most networks are connected to other local area or wide area networks. Select the best fit for answer:
Q15
You have purchased a MAU (Multistation Access Unit) from your computer supplier and now must decide what type of network card you should install in the workstations. Which of the following would be the most appropriate?
Q16
Error detecting code is
Q17
The amount of uncertainty in a system of symbol is called
Q18
A 6-MHz channel is used by a digital signaling system utilizing 4-level signals. What is the maximum possible transmission rate?
Q19
The birthplace of the World Wide Web is considered to be
Q20
An information utility can offer a user
Q21
Which of the following digits are known as the sub-address digits (for use by the user) of the Network User Address (NUA)?
Q22
Which of the following technique is used for allocating capacity on a satellite channel using fixed-assignment FDM?
Q23
A proposed network infrastructure of interconnected local, regional, and global networks that would support universal interactive multimedia communications. Select the best fit for answer:
Q24
Which of the following allows a simple email service and is responsible for moving messages from one mail server to another?
Q25
A modulator converts a _____ signal to a(n) _____ signal.