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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. 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
Packet Switching - Circuit Switching - Leased Lines
High-Level Data Link Control (HDLC)
The layer 2 frame types are not compatible
High-Level Data Link Control
2. What are common Data Link WAN encapsulations?
High-Level Data Link Control (HDLC) protocol
data terminal equipment (DTE)
HDLC - PPP - and Frame Relay
Local loop
3. 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
Asynchronous Transfer Mode (ATM)
LAPD
It is Cisco proprietary
4. Method of establishing and configuring different Network layer protocols
Show interface serial 0
Username todd password cisco
Network control Protocol (NCP)
Wide Area Network (WAN)
5. WAN stands for?
Frame Relay
Frame Relay
Wide Area Network
Point-to-Point Protocol (PPP)
6. One bit at a time over a single channel
data terminal equipment (DTE)
High-Level Data Link Control (HDLC)
Frame Relay
serial transmission
7. A point-to-point protocol used on leased lines
Encapsulation ppp
High-Level Data Link Control (HDLC) protocol
Network control Protocol (NCP)
Challenge Handshake Authentication Protocol (CHAP)
8. Network Control Protocol (NCP) is used to allow multiple Network layer protocols (routed protocols) to be used on a point-to-point connection
HDLC - Frame Relay - PPP
Supplied by the CSU/DSU
HDLC
Point-to-Point Protocol (PPP)
9. Which type of port on a router is used for a T1?
CSU/DSU
High-Level Data Link Control (HDLC) protocol
Serial
It is Cisco proprietary
10. What are the PPP Data Link protocols?
HDLC - LCP - NCP
Point-to-Point Protocol (PPP)
Network control Protocol (NCP)
High-Level Data Link Control (HDLC) protocol
11. How do you configure a serial interface to use PPP encapsulation?
Challenge Handshake Authentication Protocol (CHAP)
Point-to-Point Protocol (PPP)
Frame Relay
Encapsulation ppp
12. Proprietary
PAP and CHAP
High-Level Data Link Control (HDLC) protocol
HDLC
LAPD
13. What is the default serial encapsulation used on Cisco routers?
Network control Protocol (NCP)
Leased lines
HDLC
High-Level Data Link Control (HDLC) protocol
14. Which of that following is a packet-switching encapsulation?
Frame Relay
Authentication phase
HDLC - LCP - NCP
Link Control Protocol (LCP)
15. To connect two DTE networks together through a DCE network
Encapsulation ppp
Wide Area Network (WAN)
DCE network
LCP
16. Which is true regarding HDLC?
Frame Relay
DCE network
HDLC
It is Cisco proprietary
17. Uses the LCP (Link Control Protocol) to build and maintain data link connections
Link establishment phase
Link establishment - Authentication phases (optional) - Network layer protocol phase
Point-to-Point Protocol (PPP)
HDLC
18. Includes the area from the CSU/DSU - through the provider's wiring and switches - all the way to the CSU/DSU at the other end; provides clocking to the DTE-connected interface (the router's serial interface)
PPP
DCE network
Demarcation point
Serial
19. Serial interfaces by default; connect into data communication equipment (DCE)
serial transmission
Integrated Services Digital Network (ISDN)
Username todd password cisco
data terminal equipment (DTE)
20. Can encapsulate several layer 3 routed protocols and provide authentication - dynamic addressing - and callback
Point-to-Point Protocol (PPP)
CSU/DSU
Authentication phase
Demarcation point
21. Less secure; Passwords are sent in clear text
High-Level Data Link Control (HDLC) protocol
HDLC - LCP - NCP
Supplied by the CSU/DSU
Password Authentication Protocol (PAP)
22. What is the default serial encapsulation on a Cisco router?
HDLC
Serial
Packet switching
Network control Protocol (NCP)
23. LCP packets are sent by each PPP device to configure and test the link
Customer premises equipment (CPE)
High-Level Data Link Control
High-Level Data Link Control (HDLC)
Link establishment phase
24. Which Data Link encapsulation can be used if you have one free serial interface and many remote offices to connect?
Password Authentication Protocol (PAP)
Point-to-Point Protocol (PPP)
Frame Relay
LCP
25. Which are considered WAN connection types? (Choose three.)
Link establishment phase
Customer premises equipment (CPE)
Username todd password cisco
Packet Switching - Circuit Switching - Leased Lines
26. The default encapsulation used by Cisco routers over synchronous serial links
Network control Protocol (NCP)
data terminal equipment (DTE)
High-Level Data Link Control (HDLC) protocol
Asynchronous Transfer Mode (ATM)
27. 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
Frame Relay
serial transmission
Point-to-Point Protocol (PPP)
HDLC
28. Write the command to see the encapsulation method on serial 0 of a Cisco router
Show interface serial 0
Customer premises equipment (CPE)
Point-to-Point Protocol (PPP)
It is Cisco proprietary
29. 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
Point-to-Point Protocol (PPP)
Link Access Procedure - Balanced (LAPB)
Frame Relay
Point-to-Point Protocol (PPP)
30. Write the commands to configure a username of todd and password of cisco that is used on a Cisco router
Username todd password cisco
Point-to-Point Protocol
Link establishment phase
PAP and CHAP
31. Data Link and Physical layer specification that provides high performance; successor to X.25
Packet switching
HDLC
Frame Relay
Point-to-Point Protocol
32. Which PPP protocol provides link establishment?
LCP
Point-to-Point Protocol (PPP)
LAPD
Frame Relay
33. What is the reason why the serial link between the Corp router and the Remote router will not come up?
Frame Relay
The layer 2 frame types are not compatible
NCP
Circuit switching
34. If required - either CHAP or PAP can be used to authenticate a link
Point-to-Point Protocol (PPP)
Demarcation point
Authentication phase
HDLC
35. Nonproprietary
serial transmission
High-Level Data Link Control (HDLC) protocol
Point-to-Point Protocol (PPP)
Password Authentication Protocol (PAP)
36. 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
DCE network
Point-to-Point Protocol (PPP)
High-Level Data Link Control (HDLC) protocol
37. Method of establishing - configuring - maintaining - and terminating the point-to-point connection
Show interface serial 0
Link Control Protocol (LCP)
Frame Relay
Point-to-Point Protocol (PPP)
38. If you had one serial interface on your router and needed to connect many remote locations - which Data Link encapsulation should you use?
Frame Relay
Customer premises equipment (CPE)
The layer 2 frame types are not compatible
PPP - HDLC - Frame Relay
39. Write the commands to configure s0 to PPP encapsulation
Challenge Handshake Authentication Protocol (CHAP)
Show interface serial 0
Config t - interface serial 0 - encapsulation ppp
Point-to-Point Protocol (PPP)
40. 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
High-Level Data Link Control (HDLC) protocol
High-Level Data Link Control (HDLC) protocol
Packet switching
Link Access Procedure - Balanced (LAPB)
41. Uses the Network Control Protocol (NCP) to allow multiple Network layer protocols to be encapsulated and sent over a PPP data link
Toll network
High-Level Data Link Control (HDLC) protocol
Demarcation point
Network layer protocol phase
42. This point connects the customers to the provider's switching network
Challenge Handshake Authentication Protocol (CHAP)
Link Access Procedure - Balanced (LAPB)
The layer 2 frame types are not compatible
Central office (CO) or point of presence (POP)
43. What is a good command to verify your serial interface on a router?
High-Level Data Link Control (HDLC) protocol
High-Level Data Link Control (HDLC) protocol
Point-to-Point Protocol (PPP)
Show interface
44. HDLC stands for what?
EIA/TIA-232-C - V.24 - V.35 - and ISDN
High-Level Data Link Control
Link Access Procedure - Balanced (LAPB)
Packet switching
45. What are the two PPP authentication methods?
PAP and CHAP
Challenge Handshake Authentication Protocol (CHAP)
Link Control Protocol (LCP)
High-Level Data Link Control (HDLC) protocol
46. What does PPP mean?
Leased lines
Point-to-Point Protocol
LCP
High-Level Data Link Control (HDLC) protocol
47. A trunk line inside a WAN provider's network; a collection of switches and facilities owned by the ISP
serial transmission
Toll network
DCE network
LAPD
48. The spot where the service provider's responsibility ends and the CPE begins
Demarcation point
Toll network
Network control Protocol (NCP)
Serial
49. Which encapsulations can be configured on a serial interface? (Choose three.)
Link Access Procedure - Balanced (LAPB)
Wide Area Network
Frame Relay
HDLC - Frame Relay - PPP
50. Connects the demarc to the closest switching office - called a central office
Packet switching
High-Level Data Link Control (HDLC) protocol
Username todd password cisco
Local loop