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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. Which of that following is a packet-switching encapsulation?
Frame Relay
LAPD
Local loop
Frame Relay
2. 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)
HDLC - LCP - NCP
Point-to-Point Protocol (PPP)
DCE network
Circuit switching
3. Which is true regarding HDLC?
Frame Relay
Point-to-Point Protocol (PPP)
It is Cisco proprietary
Serial
4. Which of the following encapsulations was considered an upgrade from x.25?
High-Level Data Link Control (HDLC) protocol
HDLC - LCP - NCP
Frame Relay
PPP - HDLC - Frame Relay
5. Write the commands to configure a username of todd and password of cisco that is used on a Cisco router
Username todd password cisco
Integrated Services Digital Network (ISDN)
High-Level Data Link Control (HDLC) protocol
HDLC - Frame Relay - PPP
6. 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)
Wide Area Network
High-Level Data Link Control
NCP
7. If required - either CHAP or PAP can be used to authenticate a link
Authentication phase
Packet switching
Asynchronous Transfer Mode (ATM)
Toll network
8. Which PPP protocol provides link establishment?
LCP
Point-to-Point Protocol (PPP)
HDLC
Point-to-Point Protocol (PPP)
9. What are common Data Link WAN encapsulations?
Demarcation point
HDLC - PPP - and Frame Relay
data terminal equipment (DTE)
Link Access Procedure - D-Channel (LAPD)
10. What is a good command to verify your serial interface on a router?
Network control Protocol (NCP)
Show interface
PPP - HDLC - Frame Relay
High-Level Data Link Control (HDLC) protocol
11. A set of digital services that transmit voice and data over existing phone lines
Local loop
Point-to-Point Protocol (PPP)
Integrated Services Digital Network (ISDN)
Leased lines
12. When a router is connected to a Frame Relay WAN link using a serial DTE interface - how is the clock rate determined?
Toll network
Config t - interface serial 0 - encapsulation ppp
Supplied by the CSU/DSU
Wide Area Network
13. What is the default serial encapsulation used on Cisco routers?
Wide Area Network (WAN)
PPP
HDLC
High-Level Data Link Control (HDLC)
14. Connects the demarc to the closest switching office - called a central office
Password Authentication Protocol (PAP)
Local loop
Customer premises equipment (CPE)
Central office (CO) or point of presence (POP)
15. Data Link layer protocol that can be used over either asynchronous serial (dial-up) or synchronous serial (ISDN) media
Wide Area Network (WAN)
Point-to-Point Protocol (PPP)
Wide Area Network
HDLC - LCP - NCP
16. To connect two DTE networks together through a DCE network
Wide Area Network (WAN)
High-Level Data Link Control (HDLC)
High-Level Data Link Control (HDLC) protocol
HDLC - PPP - and Frame Relay
17. 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
NCP
Leased lines
Point-to-Point Protocol (PPP)
Point-to-Point Protocol (PPP)
18. This point connects the customers to the provider's switching network
The layer 2 frame types are not compatible
Central office (CO) or point of presence (POP)
HDLC
Wide Area Network (WAN)
19. HDLC stands for what?
High-Level Data Link Control
Point-to-Point Protocol (PPP)
Link establishment phase
Authentication phase
20. Which of the following protocols are used with ISDN as an out-of-band protocol?
Leased lines
data terminal equipment (DTE)
HDLC
LAPD
21. No authentication
Leased lines
High-Level Data Link Control (HDLC) protocol
Link establishment phase
Link Access Procedure - Balanced (LAPB)
22. To transport layer 3 packets across a Data Link layer point-to-point link
HDLC - Frame Relay - PPP
Show interface
Point-to-Point Protocol (PPP)
Supplied by the CSU/DSU
23. Bit-oriented Data Link layer protocol
Frame Relay
LAPD
High-Level Data Link Control (HDLC) protocol
Link Access Procedure - D-Channel (LAPD)
24. The spot where the service provider's responsibility ends and the CPE begins
EIA/TIA-232-C - V.24 - V.35 - and ISDN
High-Level Data Link Control (HDLC) protocol
Point-to-Point Protocol (PPP)
Demarcation point
25. A point-to-point protocol used on leased lines
LAPD
High-Level Data Link Control (HDLC) protocol
Frame Relay
HDLC - Frame Relay - PPP
26. Used with ISDN at the Data Link layer (layer 2) as a protocol for the D (signaling) channel
Link Access Procedure - D-Channel (LAPD)
Frame Relay
Network control Protocol (NCP)
Frame Relay
27. 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
Supplied by the CSU/DSU
HDLC - Frame Relay - PPP
Network control Protocol (NCP)
Link Access Procedure - Balanced (LAPB)
28. Which of the following are considered common Data Link WAN encapsulation types? (Choose three.)
Toll network
Point-to-Point Protocol
PPP - HDLC - Frame Relay
HDLC
29. Uses MD5 challange/response
CSU/DSU
Challenge Handshake Authentication Protocol (CHAP)
HDLC - LCP - NCP
NCP
30. What is the reason why the serial link between the Corp router and the Remote router will not come up?
Asynchronous Transfer Mode (ATM)
PPP - HDLC - Frame Relay
Frame Relay
The layer 2 frame types are not compatible
31. Which protocol in PPP is used to identify the routed protocols?
HDLC
Network control Protocol (NCP)
Link establishment - Authentication phases (optional) - Network layer protocol phase
NCP
32. Serial interfaces by default; connect into data communication equipment (DCE)
Frame Relay
Point-to-Point Protocol (PPP)
Link Control Protocol (LCP)
data terminal equipment (DTE)
33. Equipment that's owned by the subscriber and located on the subscriber's premises
High-Level Data Link Control (HDLC)
Customer premises equipment (CPE)
Show interface
Supplied by the CSU/DSU
34. Specifies an encapsulation method for data on synchronous serial data links using frame characters and checksums
Point-to-Point Protocol (PPP)
CSU/DSU
High-Level Data Link Control (HDLC) protocol
EIA/TIA-232-C - V.24 - V.35 - and ISDN
35. Can encapsulate several layer 3 routed protocols and provide authentication - dynamic addressing - and callback
LCP
Point-to-Point Protocol (PPP)
Link establishment phase
Asynchronous Transfer Mode (ATM)
36. If you had one serial interface on your router and needed to connect many remote locations - which Data Link encapsulation should you use?
Demarcation point
Central office (CO) or point of presence (POP)
Frame Relay
PPP
37. 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 (HDLC) protocol
Authentication phase
High-Level Data Link Control (HDLC) protocol
Frame Relay
38. Nonproprietary
Encapsulation ppp
Circuit switching
Point-to-Point Protocol (PPP)
PAP and CHAP
39. Method of establishing - configuring - maintaining - and terminating the point-to-point connection
Show interface
Authentication phase
Frame Relay
Link Control Protocol (LCP)
40. The default encapsulation used by Cisco routers over synchronous serial links
High-Level Data Link Control (HDLC) protocol
Frame Relay
Config t - interface serial 0 - encapsulation ppp
LAPD
41. 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
Circuit switching
It is Cisco proprietary
High-Level Data Link Control (HDLC) protocol
Frame Relay
42. Designed to allow the simultaneous use of multiple Network layer protocols
PAP and CHAP
Toll network
Show interface
Network control Protocol (NCP)
43. Proprietary
Link establishment - Authentication phases (optional) - Network layer protocol phase
Wide Area Network
serial transmission
High-Level Data Link Control (HDLC) protocol
44. Which type of port on a router is used for a T1?
High-Level Data Link Control
Serial
Point-to-Point Protocol (PPP)
Frame Relay
45. Which are considered WAN connection types? (Choose three.)
Packet Switching - Circuit Switching - Leased Lines
EIA/TIA-232-C - V.24 - V.35 - and ISDN
Toll network
Password Authentication Protocol (PAP)
46. What are the PPP Data Link protocols?
Wide Area Network
HDLC - LCP - NCP
Packet switching
Show interface serial 0
47. 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
Customer premises equipment (CPE)
Asynchronous Transfer Mode (ATM)
Point-to-Point Protocol (PPP)
Local loop
48. What is the default serial encapsulation on a Cisco router?
HDLC
Demarcation point
Central office (CO) or point of presence (POP)
Frame Relay
49. Write the commands to configure s0 to PPP encapsulation
High-Level Data Link Control (HDLC)
Config t - interface serial 0 - encapsulation ppp
Challenge Handshake Authentication Protocol (CHAP)
Wide Area Network (WAN)
50. A trunk line inside a WAN provider's network; a collection of switches and facilities owned by the ISP
Toll network
Asynchronous Transfer Mode (ATM)
NCP
It is Cisco proprietary