Wide Area Network Tutorial 4

Modem-to-modem connections are which of the following?
1. DTE to DTE
2. DCE to DCE
3. DTE to DCE
4. Dependent upon the modulation used
When you are setting up a long distence connection which of the following is typically the lowest cost solution?
1. Frame Relay
2. ISDN
3. Leased Line
4. Analog dia-up
What is the default encapsulation for serial circuits on Cisco routers?
1. PPP
2. ATM
3. HDLC
4. SDLC
The LZW algorithm performs what function?
1. Error correction
2. compression
3. hardware flowcontrol
4. none of the above
Which of the following is a valid DLCI for use on a serial interface
1. 0
2. 15
3. 1008
4. 1023
5. None of the above
Which of the following options represnts the connection between the router and modem?
1. DTE to DTE
2. DTE to DCE
3. DCE to DCE
4. Analog
baud is roughly equivalent to which of the following descriptions?
1. Bits per minute
2. Bits per second
3. Four to one encryption
4. Analog-to-digital encoding
You have one corporate office and many small remote offices that transmit only bursty data transfer. which WAN technology should you consider?
1. Frame Relay
2. X.25
3. Dedicated circuit
4. Asynchronous connections
What is the interface used to configure the router locallu called?
1. auxiliary
2. virtual terminal
3. console
4. management
The CTS and RTS wires are part of what modem function?
1. modem control signaling
2. hardware flow control
3. data transfer
4. compression
The transport protocols do not include which of the following?
1. Telnet
2. rlogin
3. v120
4. FTP
The protocol characteristics of the asynchronous connection are defined by which of the following
1. the line interface
2. the ethernet interface
3. the asynchoronous interface
4. the modem interface
A frame relay switch is getting congested. What type of message would it transmit to the sender of the frame, indicating that congestion is occuring
1. BECN
2. FECN
3. DE
4. CIR
5. CR
Which of these is not a characteristic of CHAP?
1. MD5 authentication algorithm
2. it is a 2-way handshake
3. C023 is the authentication-protocol
4. it uses TCP for transport
What is the function of the ground wire?
1. To secure the modem to the router
2. To provide a reference signal for clocking
3. To provide a reference signal for voltage changes
4. To allow data bursts
Which of the following compression methods can be used?
Choose 3
1. Software
2. Hardware
3. Server
4. Distributed
PPP uses which two protocols?
1. LCP and NCP
2. SLIP and SPX
3. EIGRP and OSPF
4. LLC and IP
Does the use of PPP require the administrator to use static IP addressing?
1. No
2. Yes, unless CHAP is also used
3. Yes, unless PAP is also used
4. Yes, unless the ppp dynamic command is used
Which of the following is the best choice for compression when data is both pre-compressed and uncompressed?
1. Stac
2. Predictor
3. MPPC
4. TCP
What is the typical maximum speed of an asynchronous dialup connection?
1. 1Mbps
2. 1.544Mbps
3. 56Kbps
4. 53Kbps
Which of the following best describes some telecommunications parameters for a central office?
1. Low-speed connections are an option
2. Redundancy is required
3. Fixed configuration routers are a must
4. Cost is very important
Which connection option guarantees consistent bandwidth availablity all the time?
1. Frame relay
2. Leasded line
3. ISDN
4. DSL
What is the maximum speed of an ISDN BRI connection?
1. 64kbps
2. 128kbps
3. 256kbps
4. 1544kbps
What does the DTR indicator on a serial interface mean?
1. Data transmit rejected
2. Data terminal ready
3. Data transmit ready
4. Data terminal rejected
Where is PPP typically deployed?
Choose 3
1. ISDN implementation
2. LAN segments
3. Serial connections
4. Dialup solutions

Wide Area Network Tutorial 4

Quiz