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Test your basic knowledge |
Wide Area Netwoking Protocols
Start Test
Study First
Subject
:
it-skills
Instructions:
Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. A point-to-point protocol used on leased lines
Integrated Services Digital Network (ISDN)
NCP
DCE network
High-Level Data Link Control (HDLC) protocol
2. What is the default serial encapsulation on a Cisco router?
Toll network
Central office (CO) or point of presence (POP)
LAPD
HDLC
3. Data Link and Physical layer specification that provides high performance; successor to X.25
High-Level Data Link Control (HDLC) protocol
Frame Relay
LAPD
Point-to-Point Protocol (PPP)
4. When a router is connected to a Frame Relay WAN link using a serial DTE interface - how is the clock rate determined?
PPP
PAP and CHAP
Supplied by the CSU/DSU
Wide Area Network (WAN)
5. The spot where the service provider's responsibility ends and the CPE begins
Point-to-Point Protocol (PPP)
Central office (CO) or point of presence (POP)
Demarcation point
Challenge Handshake Authentication Protocol (CHAP)
6. Proprietary
Supplied by the CSU/DSU
Serial
Network layer protocol phase
High-Level Data Link Control (HDLC) protocol
7. Which protocol in PPP is used to identify the routed protocols?
NCP
HDLC - PPP - and Frame Relay
Link establishment phase
Point-to-Point Protocol (PPP)
8. A trunk line inside a WAN provider's network; a collection of switches and facilities owned by the ISP
Toll network
Point-to-Point Protocol (PPP)
High-Level Data Link Control (HDLC) protocol
Wide Area Network
9. Derived from Synchronous Data Link Control (SDLC); created by IBM as a Data Link connection protocol; very little overhead compared to LAPB; The HDLC header carries no identification of the type of protocol being carried inside the HDLC encapsulation
Link establishment phase
High-Level Data Link Control (HDLC)
Challenge Handshake Authentication Protocol (CHAP)
Frame Relay
10. What are the PPP Data Link protocols?
High-Level Data Link Control (HDLC)
HDLC - LCP - NCP
High-Level Data Link Control (HDLC) protocol
PPP
11. No authentication
High-Level Data Link Control (HDLC) protocol
CSU/DSU
Packet switching
Config t - interface serial 0 - encapsulation ppp
12. Can encapsulate several layer 3 routed protocols and provide authentication - dynamic addressing - and callback
Point-to-Point Protocol (PPP)
Wide Area Network
LAPD
The layer 2 frame types are not compatible
13. A set of digital services that transmit voice and data over existing phone lines
Frame Relay
Customer premises equipment (CPE)
High-Level Data Link Control (HDLC) protocol
Integrated Services Digital Network (ISDN)
14. What is the default serial encapsulation used on Cisco routers?
Toll network
HDLC
NCP
Authentication phase
15. Which are considered WAN connection types? (Choose three.)
High-Level Data Link Control (HDLC) protocol
EIA/TIA-232-C - V.24 - V.35 - and ISDN
Packet Switching - Circuit Switching - Leased Lines
Network layer protocol phase
16. Nonproprietary
LCP
CSU/DSU
Customer premises equipment (CPE)
Point-to-Point Protocol (PPP)
17. Method of establishing and configuring different Network layer protocols
HDLC - PPP - and Frame Relay
Point-to-Point Protocol (PPP)
Customer premises equipment (CPE)
Network control Protocol (NCP)
18. Equipment that's owned by the subscriber and located on the subscriber's premises
Customer premises equipment (CPE)
Frame Relay
Link establishment - Authentication phases (optional) - Network layer protocol phase
Link Access Procedure - Balanced (LAPB)
19. Used to create point-to-point links between different vendors' equipment; uses a Network Control Protocol field in the Data Link header to identify the Network layer protocol; allows authentication and multilink connections and can be run over asynch
Point-to-Point Protocol (PPP)
Link establishment - Authentication phases (optional) - Network layer protocol phase
HDLC - PPP - and Frame Relay
HDLC - Frame Relay - PPP
20. Physical layer international standard for serial communication
High-Level Data Link Control (HDLC) protocol
EIA/TIA-232-C - V.24 - V.35 - and ISDN
Wide Area Network (WAN)
Point-to-Point Protocol (PPP)
21. Which of that following is a packet-switching encapsulation?
HDLC - LCP - NCP
Network layer protocol phase
Frame Relay
Demarcation point
22. Specifies an encapsulation method for data on synchronous serial data links using frame characters and checksums
EIA/TIA-232-C - V.24 - V.35 - and ISDN
PPP - HDLC - Frame Relay
Point-to-Point Protocol (PPP)
High-Level Data Link Control (HDLC) protocol
23. Write the commands to configure s0 to PPP encapsulation
Circuit switching
Local loop
High-Level Data Link Control (HDLC) protocol
Config t - interface serial 0 - encapsulation ppp
24. If required - either CHAP or PAP can be used to authenticate a link
Authentication phase
PPP
Network control Protocol (NCP)
serial transmission
25. Data Link layer protocol that can be used over either asynchronous serial (dial-up) or synchronous serial (ISDN) media
High-Level Data Link Control
Point-to-Point Protocol (PPP)
HDLC - Frame Relay - PPP
Wide Area Network
26. To connect two DTE networks together through a DCE network
Point-to-Point Protocol (PPP)
High-Level Data Link Control (HDLC) protocol
Wide Area Network (WAN)
Point-to-Point Protocol (PPP)
27. LCP packets are sent by each PPP device to configure and test the link
Point-to-Point Protocol (PPP)
Link establishment phase
Link Access Procedure - D-Channel (LAPD)
Point-to-Point Protocol (PPP)
28. Which of the following are considered common Data Link WAN encapsulation types? (Choose three.)
PPP - HDLC - Frame Relay
EIA/TIA-232-C - V.24 - V.35 - and ISDN
It is Cisco proprietary
Point-to-Point Protocol (PPP)
29. What is the reason why the serial link between the Corp router and the Remote router will not come up?
LAPD
HDLC - LCP - NCP
data terminal equipment (DTE)
The layer 2 frame types are not compatible
30. Designed to allow the simultaneous use of multiple Network layer protocols
Password Authentication Protocol (PAP)
Network control Protocol (NCP)
DCE network
Leased lines
31. Which of the following encapsulations was considered an upgrade from x.25?
EIA/TIA-232-C - V.24 - V.35 - and ISDN
Frame Relay
HDLC - PPP - and Frame Relay
CSU/DSU
32. Uses dial-up modems or ISDN and is used for low-bandwidth data transfers; No data can transfer before an end-to-end connection is established
Show interface
Circuit switching
High-Level Data Link Control (HDLC) protocol
Leased lines
33. Network Control Protocol (NCP) is used to allow multiple Network layer protocols (routed protocols) to be used on a point-to-point connection
DCE network
EIA/TIA-232-C - V.24 - V.35 - and ISDN
Point-to-Point Protocol (PPP)
Central office (CO) or point of presence (POP)
34. Uses MD5 challange/response
PPP - HDLC - Frame Relay
Challenge Handshake Authentication Protocol (CHAP)
serial transmission
Point-to-Point Protocol (PPP)
35. Uses the LCP (Link Control Protocol) to build and maintain data link connections
Customer premises equipment (CPE)
HDLC - LCP - NCP
Point-to-Point Protocol (PPP)
Show interface serial 0
36. Which of the following protocols are used with ISDN as an out-of-band protocol?
HDLC
Point-to-Point Protocol
LAPD
Password Authentication Protocol (PAP)
37. Protocol stack is specified at the Physical and Data Link layers only
Link establishment - Authentication phases (optional) - Network layer protocol phase
HDLC
Point-to-Point Protocol (PPP)
Link Access Procedure - D-Channel (LAPD)
38. When PPP connections are started - the links go through three phases of session establishment. What are the three phases?
Link establishment - Authentication phases (optional) - Network layer protocol phase
HDLC - LCP - NCP
Packet switching
High-Level Data Link Control (HDLC) protocol
39. A point-to-point connection or dedicated connection; a pre-established WAN communications path from the CPE through the DCE switch to the CPE of the remote site - allowing DTE networks to communicate at any time with no setup procedures before transm
High-Level Data Link Control (HDLC) protocol
It is Cisco proprietary
Leased lines
Supplied by the CSU/DSU
40. Uses the Network Control Protocol (NCP) to allow multiple Network layer protocols to be encapsulated and sent over a PPP data link
High-Level Data Link Control (HDLC)
Network layer protocol phase
NCP
Frame Relay
41. Which encapsulations can be configured on a serial interface? (Choose three.)
DCE network
Link establishment - Authentication phases (optional) - Network layer protocol phase
Link Access Procedure - D-Channel (LAPD)
HDLC - Frame Relay - PPP
42. What does PPP mean?
Network control Protocol (NCP)
HDLC
Asynchronous Transfer Mode (ATM)
Point-to-Point Protocol
43. How do you configure a serial interface to use PPP encapsulation?
Asynchronous Transfer Mode (ATM)
High-Level Data Link Control (HDLC)
Encapsulation ppp
Show interface serial 0
44. Which Data Link encapsulation can be used if you have one free serial interface and many remote offices to connect?
High-Level Data Link Control
Network control Protocol (NCP)
Point-to-Point Protocol (PPP)
Frame Relay
45. Which is true regarding HDLC?
It is Cisco proprietary
HDLC
Frame Relay
Point-to-Point Protocol (PPP)
46. A connection-oriented protocol at the Data Link layer for use with X.25; causes a tremendous amount of overhead because of its strict time-out and windowing techniques; can also be used as a simple data link transport
Link Access Procedure - Balanced (LAPB)
Frame Relay
PPP
High-Level Data Link Control (HDLC) protocol
47. What is a good command to verify your serial interface on a router?
Point-to-Point Protocol (PPP)
Show interface
The layer 2 frame types are not compatible
Network control Protocol (NCP)
48. Uses cells instead of packets that are a fixed 53 bytes long; can use isochronous clocking (external clocking) to help the data move faster; provides simultaneous transmission of voice - video - and data
Network layer protocol phase
Point-to-Point Protocol (PPP)
High-Level Data Link Control (HDLC) protocol
Asynchronous Transfer Mode (ATM)
49. This point connects the customers to the provider's switching network
Central office (CO) or point of presence (POP)
It is Cisco proprietary
Link establishment phase
Point-to-Point Protocol (PPP)
50. Allows you to share bandwidth with other companies to save money; a network that's designed to look like a leased line yet charges you (and costs) more like circuit switching; data transfers are bursty in nature; Frame Relay and X.25
CSU/DSU
Point-to-Point Protocol (PPP)
HDLC - Frame Relay - PPP
Packet switching