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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. What is the default serial encapsulation used on Cisco routers?
HDLC
Point-to-Point Protocol (PPP)
Network control Protocol (NCP)
Config t - interface serial 0 - encapsulation ppp
2. What are the two PPP authentication methods?
It is Cisco proprietary
Customer premises equipment (CPE)
PAP and CHAP
serial transmission
3. 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
Challenge Handshake Authentication Protocol (CHAP)
CSU/DSU
High-Level Data Link Control (HDLC)
Circuit switching
4. Protocol stack is specified at the Physical and Data Link layers only
Point-to-Point Protocol (PPP)
Circuit switching
High-Level Data Link Control (HDLC) protocol
Network control Protocol (NCP)
5. Nonproprietary
Point-to-Point Protocol (PPP)
HDLC - LCP - NCP
Frame Relay
LAPD
6. When a router is connected to a Frame Relay WAN link using a serial DTE interface - how is the clock rate determined?
Serial
PPP - HDLC - Frame Relay
Supplied by the CSU/DSU
Frame Relay
7. Which PPP protocol provides link establishment?
LCP
Packet Switching - Circuit Switching - Leased Lines
Packet switching
High-Level Data Link Control (HDLC) protocol
8. When PPP connections are started - the links go through three phases of session establishment. What are the three phases?
Password Authentication Protocol (PAP)
Link establishment - Authentication phases (optional) - Network layer protocol phase
LAPD
High-Level Data Link Control (HDLC) protocol
9. Connects the demarc to the closest switching office - called a central office
Serial
Local loop
HDLC - PPP - and Frame Relay
CSU/DSU
10. Which of the following protocols are used with ISDN as an out-of-band protocol?
Link establishment - Authentication phases (optional) - Network layer protocol phase
Challenge Handshake Authentication Protocol (CHAP)
LAPD
HDLC
11. Uses the LCP (Link Control Protocol) to build and maintain data link connections
Point-to-Point Protocol (PPP)
The layer 2 frame types are not compatible
Authentication phase
Show interface
12. How do you configure a serial interface to use PPP encapsulation?
Circuit switching
Config t - interface serial 0 - encapsulation ppp
Packet switching
Encapsulation ppp
13. The spot where the service provider's responsibility ends and the CPE begins
High-Level Data Link Control
High-Level Data Link Control (HDLC) protocol
Demarcation point
Point-to-Point Protocol (PPP)
14. A set of digital services that transmit voice and data over existing phone lines
Link Access Procedure - D-Channel (LAPD)
HDLC
Show interface
Integrated Services Digital Network (ISDN)
15. Less secure; Passwords are sent in clear text
Password Authentication Protocol (PAP)
EIA/TIA-232-C - V.24 - V.35 - and ISDN
Challenge Handshake Authentication Protocol (CHAP)
Point-to-Point Protocol (PPP)
16. To connect two DTE networks together through a DCE network
Wide Area Network (WAN)
Show interface serial 0
It is Cisco proprietary
The layer 2 frame types are not compatible
17. Serial interfaces by default; connect into data communication equipment (DCE)
data terminal equipment (DTE)
Point-to-Point Protocol (PPP)
Show interface serial 0
Toll network
18. What are common Data Link WAN encapsulations?
HDLC - PPP - and Frame Relay
Frame Relay
Link establishment phase
PAP and CHAP
19. Proprietary
Link establishment phase
Network control Protocol (NCP)
Network control Protocol (NCP)
High-Level Data Link Control (HDLC) protocol
20. Which Data Link encapsulation can be used if you have one free serial interface and many remote offices to connect?
Leased lines
Frame Relay
HDLC - Frame Relay - PPP
CSU/DSU
21. Which encapsulations can be configured on a serial interface? (Choose three.)
HDLC - Frame Relay - PPP
High-Level Data Link Control (HDLC) protocol
Link Control Protocol (LCP)
HDLC - LCP - NCP
22. One bit at a time over a single channel
Point-to-Point Protocol (PPP)
Config t - interface serial 0 - encapsulation ppp
serial transmission
Packet Switching - Circuit Switching - Leased Lines
23. 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)
PPP
Frame Relay
Circuit switching
24. Can encapsulate several layer 3 routed protocols and provide authentication - dynamic addressing - and callback
data terminal equipment (DTE)
Leased lines
Wide Area Network
Point-to-Point Protocol (PPP)
25. 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
PPP
Link establishment - Authentication phases (optional) - Network layer protocol phase
Config t - interface serial 0 - encapsulation ppp
Point-to-Point Protocol (PPP)
26. Which of that following is a packet-switching encapsulation?
Authentication phase
Frame Relay
High-Level Data Link Control (HDLC) protocol
Packet switching
27. Write the commands to configure s0 to PPP encapsulation
Central office (CO) or point of presence (POP)
High-Level Data Link Control (HDLC) protocol
Toll network
Config t - interface serial 0 - encapsulation ppp
28. Write the commands to configure a username of todd and password of cisco that is used on a Cisco router
LAPD
Username todd password cisco
Link establishment phase
Packet Switching - Circuit Switching - Leased Lines
29. WAN stands for?
Link establishment phase
Point-to-Point Protocol (PPP)
HDLC - PPP - and Frame Relay
Wide Area Network
30. What is the default serial encapsulation on a Cisco router?
Wide Area Network
Frame Relay
HDLC
Link establishment phase
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
PPP
data terminal equipment (DTE)
High-Level Data Link Control (HDLC)
EIA/TIA-232-C - V.24 - V.35 - and ISDN
32. Network Control Protocol (NCP) is used to allow multiple Network layer protocols (routed protocols) to be used on a point-to-point connection
Supplied by the CSU/DSU
Toll network
Link Control Protocol (LCP)
Point-to-Point Protocol (PPP)
33. Designed to allow the simultaneous use of multiple Network layer protocols
Wide Area Network
Network control Protocol (NCP)
Link Access Procedure - D-Channel (LAPD)
High-Level Data Link Control (HDLC) protocol
34. 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)
Point-to-Point Protocol (PPP)
Circuit switching
High-Level Data Link Control (HDLC) protocol
DCE network
35. 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
Challenge Handshake Authentication Protocol (CHAP)
Point-to-Point Protocol (PPP)
serial transmission
Asynchronous Transfer Mode (ATM)
36. Data Link and Physical layer specification that provides high performance; successor to X.25
Frame Relay
Circuit switching
Central office (CO) or point of presence (POP)
Wide Area Network (WAN)
37. HDLC stands for what?
Link Access Procedure - D-Channel (LAPD)
Packet Switching - Circuit Switching - Leased Lines
High-Level Data Link Control
Local loop
38. A trunk line inside a WAN provider's network; a collection of switches and facilities owned by the ISP
Central office (CO) or point of presence (POP)
Toll network
Frame Relay
High-Level Data Link Control (HDLC) protocol
39. Which of the following are considered common Data Link WAN encapsulation types? (Choose three.)
Authentication phase
Frame Relay
PPP - HDLC - Frame Relay
Supplied by the CSU/DSU
40. No authentication
Toll network
Frame Relay
Password Authentication Protocol (PAP)
High-Level Data Link Control (HDLC) protocol
41. 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
Leased lines
HDLC - Frame Relay - PPP
Show interface serial 0
LCP
42. If required - either CHAP or PAP can be used to authenticate a link
High-Level Data Link Control (HDLC) protocol
LCP
CSU/DSU
Authentication phase
43. Which are considered WAN connection types? (Choose three.)
High-Level Data Link Control (HDLC) protocol
PAP and CHAP
Link establishment phase
Packet Switching - Circuit Switching - Leased Lines
44. Physical layer international standard for serial communication
Supplied by the CSU/DSU
EIA/TIA-232-C - V.24 - V.35 - and ISDN
High-Level Data Link Control (HDLC) protocol
serial transmission
45. The default encapsulation used by Cisco routers over synchronous serial links
NCP
Challenge Handshake Authentication Protocol (CHAP)
CSU/DSU
High-Level Data Link Control (HDLC) protocol
46. What is a good command to verify your serial interface on a router?
Frame Relay
Wide Area Network
Show interface
LCP
47. Bit-oriented Data Link layer protocol
NCP
High-Level Data Link Control (HDLC) protocol
Encapsulation ppp
DCE network
48. Equipment that's owned by the subscriber and located on the subscriber's premises
Point-to-Point Protocol
High-Level Data Link Control (HDLC) protocol
It is Cisco proprietary
Customer premises equipment (CPE)
49. To transport layer 3 packets across a Data Link layer point-to-point link
Asynchronous Transfer Mode (ATM)
Wide Area Network (WAN)
Point-to-Point Protocol (PPP)
LCP
50. Method for encapsulating datagrams over serial links
PAP and CHAP
High-Level Data Link Control (HDLC) protocol
Link establishment - Authentication phases (optional) - Network layer protocol phase
High-Level Data Link Control (HDLC)