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