Multiple Choice Answers

1. (TCO 5) MPLS uses constraint-based routing. Which of the following variables is NOT considered with MPLS? (Points : 5)
Bandwidth
Delay
Distance between routers
Quality of Service requirements

Question 2. 2. (TCO 5) Which one of the following is NOT an EDI standard that is used, as mentioned in the course textbook? (Points : 5)
Proprietary
Noncompliant and industry specific
Local, such as X.22
National, such as ANSI X.12
International, such as EDIFACT (EDI for Administration, Commerce, and Transport)

Question 3. 3. (TCO 5) What does SMTP stand for? (Points : 5)
Synchronous Mail Transfer Protocol
Simple Mail Transfer Protocol
Server Maintenance Terminal Program
Synchronous Mean Time Protocol

Question 4. 4. (TCO 5) Which of the following is NOT an interior gateway routing protocol? (Points : 5)
Border Gateway Protocol
Routing Information Protocol
Open Shortest Path First
Integrated IS-IS

Question 5. 5. (TCO 6) Which of the following is a compelling reason for convergence?
(Points : 5)
Marketing
Security
Lower cost of ownership
Additional equipment

Question 6. 6. (TCO 6) Which of the following is NOT one of the disruptive influences on the telecommunications industry?
(Points : 5)
Long distance commoditization
Local service competition
Cable and cellular competition
Increasing government interference

2nd

1. (TCO 1) Which of the following contains ALL the correct issues involved in network security, as stated by the textbook? (Points : 5)

Physical security, terminal security, LAN networking, data security, policies
Physical security, terminal security, disaster recovery, data security, industry trends
Physical security, terminal security, disaster recovery, data security, policies
VoIP programming, terminal security, disaster recovery, data security, policies

Question 2. 2. (TCO 1) Which of the following includes all of the issues involved in a data network facility selection, according to the textbook? (Points : 5)
Bandwidth requirements, nature of the application, service connectivity, switching and routing, common carrier or value-added carrier, switched or dedicated facilities, terrestrial or satellite circuits, circuit sharing
Bandwidth requirements, nature of the application, service availability, digital or analog, common carrier or value-added carrier, switched or dedicated facilities, terrestrial or satellite circuits, circuit sharing
Wi-Fi networking, switching and routing, service availability, digital or analog, common carrier or value-added carrier, switched or dedicated facilities, terrestrial or satellite circuits, circuit sharing
Point-to-point requirements, natural selection, service availability, digital or analog, common carrier or value-added carrier, switched or dedicated facilities, terrestrial or satellite circuits, circuit sharing

Question 3. 3. (TCO 1) Which of the following is NOT a WAN application issue that data network applications can be separated into? (Points : 5)
Conversational
Networking
Bulk data transfer
Inquiry/response
Remote job entry
Question 4. 4. (TCO 2) Which term correctly matches the following definition, as stated in the course textbook?
After the session is set up, the protocol controls the traffic flow and data integrity across the datalink. (Points : 5)
Open layer session
Communications control
Error detection and correction
Link management

Question 5. 5. (TCO 2) Which term correctly matches the following definition, as stated in the course textbook?
Every session requires an address to set up a connection if the protocol is connection oriented or to route packets if it is connectionless. Not all protocols contain addresses. Many of them rely on higher or lower layers for addressing. (Points : 5)
Synchronizing
Addressing
Setting session variables
Routing
Question 6. 6. (TCO 2) Which term correctly matches the following definition, as stated in the course textbook?
In data networks that have multiple routes to the destination, the protocol determines the appropriate route based on such conditions as cost, congestion, distance, and type of facility. (Points : 5)
Data segmenting and reassembly
Data formatting
Routing
Addressing
Question 7. 7. (TCO 3) Which layer of the OSI model is responsible for end-to-end routing? (Points : 5)
Layer 1 Physical
Layer 2 Datalink
Layer 3 Network
Layer 4 Transport

Question 8. 8. (TCO 3) IEEE 802.3 is otherwise known as which of the following? (Points : 5)
Wi-Fi
Ethernet
Internet
PDA

Question 9. 9. (TCO 3) What are the two primary criteria that characterize DSL? (Points : 5)
Line coding and modulation methods
Speed and efficiency
Encryption and decryption
Fiber and coax

Question 10. 10. (TCO 4) Fiber-optic system design is a balance between capacity requirements and costs, which include the cable, terminal equipment, regenerators and amplifiers, and construction and engineering. Identify the three primary criteria for evaluating a system. (Points : 5)
Wavelength add-drop multiplexers, optical cross connect, wavelength division multiplexing
Information transfer rate, system attenuation and losses, cutoff wavelength
Information transfer rate, system attenuation and losses, wavelength add-drop multiplexers
Information transfer rate, system attenuation and losses, wavelength division multiplexing

Question 11. 11. (TCO 4) Which one of the following terms matches the description below?
System gain in fiber optics is the algebraic difference between transmitter output power and receiver sensitivity. For example, a system with a transmitter output of -5 dBm and a receiver sensitivity of -40 dBm has a system gain of 35 dB. From the system gain, designers compute a loss budget, which is the amount of cable loss that can be tolerated within the available system gain. (Points : 5)
System attenuation and losses
Information transfer rate
Cutoff wavelength
Sample performance calculation
Question 12. 12. (TCO 5) The following description matches which term below?
The X.500 protocol is too cumbersome for many organizations to use, but some method of maintaining directories is required. Every organization has its internal directory, often printed on paper and usually obsolete before it can be distributed. Online directories are the preferred method because they can be updated daily if necessary. An online directory is easy for people to use, but it needs structure to be used in machine communications. Applications must be able to find someone regardless of location to send an e-mail, instant message, or voice call. (Points : 5)
Simple Mail Transfer Protocol
X. 400 Messaging Protocol
X.500 Directory Service
Lightweight Directory Access Protocol (LDAP)