| Question: |
Cisco has 2 platform types. What are they?
A. Static
B. Fixed
C. Preset
D. Modular
E. Scalable |
| Answer: |
B. Fixed
D. Modular |
| Explanation: |
Cisco has 2 types of platforms:
- modular, different ports and modules can be inserted in the router
- fixed, ports are defined when the router leaves the factory |
|
| Question: |
What type of router would you recommend in a Remote Office? [according to Cisco]
A. 1600 series
B. 1700 series
C. 2500 series
D. 2600 series
E. 800 series |
| Answer: |
E. 800 series |
| Explanation: |
According to Cisco the 800 series routers are ideal for Remote Offices (RO) and Small Offices, Home Offices (SOHO). |
|
| Question: |
If you are using AVVID what type of router is recommended by Cisco to use?
A. 3600 series
B. 7200 series
C. 2600 series
D. 3700 series |
| Answer: |
D. 3700 series |
| Explanation: |
According to Cisco the 3700 series router, which is replacing the 3600 series, is the cornerstone for AVVID [Architecture for Voice, Video and Integrated Data]. |
|
| Question: |
Of the following WAN technologies which are emerging technologies?
A. ATM
B. xDSL
C. Wireless
D. Frame-Relay
E. ISDN |
| Answer: |
B. xDSL
C. Wireless |
| Explanation: |
xDSL, Cable access and Wireless are emerging WAN technologies compared to ATM, ISDN, Dial up, Frame-Relay and Leased Lines. |
|
| Question: |
Which WAN technology has 4Mb upload and up to 28Mb download speeds?
A. ATM
B. xDSL
C. Frame-Relay
D. Cable Access
E. Wireless |
| Answer: |
D. Cable Access |
| Explanation: |
Cable access has speeds that are up to 4Mb upload and 28Mb download. |
|
| Question: |
If we want to connect our network to the internet what is the best way to provide security?
A. Checkpoint Firewall-1
B. 3700 series router
C. PIX
D. 2600 series router |
| Answer: |
C. PIX |
| Explanation: |
If we need security on our internet connection and using a Cisco product then the PIX Firewall is the device to acquire. |
|
| Question: |
When determining the site requirements what is the major consideration to evaluate?
A. speed
B. growth
C. cost
D. flexibility |
| Answer: |
C. cost |
| Explanation: |
Cost is a major consideration when evaluating the requirements for a central site, branch-office or remote office or home office. |
|
| Question: |
Which of the following are methods of policing?
A. CAR
B. CIR
C. PQ
D. WRED
E. WFQ |
| Answer: |
A. CAR
D. WRED
|
| Explanation: |
The three basic types of policing are:
- Commited Access Rate (CAR)
- Random Early Detection (RED)
- Weighted Random Early Detection (WRED) |
|
| Question: |
Which of the following are types of congestion management?
A. Committed Access Rate
B. Weighted Random Early Detection
C. IP Presedence
D. Weighted Fair Queueing
E. Priority Queueing
F. Compression |
| Answer: |
D. Weighted Fair Queueing
E. Priority Queueing |
| Explanation: |
Congestion management can use one of the following queueing methods:
- Priority Queueing
- Custom Queueing
- Weighted Fair Queueing |
|
| Question: |
Which type of link would we usually find at a Central-Site?
A. Leased Line
B. ISDN
C. Dial-Up
D. Frame-Relay |
| Answer: |
A. Leased Line |
| Explanation: |
Leased lines are typically found at the Central-Site since they provide better reliability then Frame-Relay. |
|
| Question: |
Which of the following are factors that you need to take in consideration when selecting equipment?
A. Encryption
B. Compression
C. Ease of management
D. Ease of implementation
E. Availability |
| Answer: |
A. Encryption
C. Ease of management
E. Availability |
| Explanation: |
Factors that you need to take in consideration when selecting equipment are the following:
- Bandwidth
- Availability
- Reliability
- Cost
- Ease of management
- Applications and traffic patterns
- Redundancy
- QoS
- Security
- Encryption |
|
| Question: |
An E1 circuit consits of how many DS0s?
A. 24
B. 29
C. 30
D. 100
E. Eleventy Billion |
| Answer: |
C. 30 |
| Explanation: |
DS0 equal 64kbps so an E1 2.048Mbps consists of 30 DS0s. |
|
| Question: |
In a packet switched environment a VC is labeled with a?
A. MAC Address
B. VPI
C. IP Address
D. DLCI
E. VCI |
| Answer: |
D. DLCI |
| Explanation: |
In a packet switched environment a VC is labeled with a Data-Link Connection Identifier (DLCI) that is local only to the site assigned the DLCI. |
|
| Question: |
How can we ensure that the traffic is safe during transfer?
A. Use Leased Lines
B. Use Compression
C. Implement VPNs
D. Implement Firewalls |
| Answer: |
C. Implement VPNs |
| Explanation: |
To ensure that data is safe during transfer from one site to another implement VPNs. |
|
| Question: |
What is a major consideration in a ROBO site only?
A. Application traffic patterns
B. Cost of equipment
C. Access control
D. Flexibility |
| Answer: |
A. Application traffic patterns |
| Explanation: |
The major considerations for a ROBO are:
- WAN availability
- Redundancy needs
- Ease of management
- Application traffic patterns |
|
| Question: |
What can you use on the Cisco website to help you choose equipement?
A. Product Specifications Tool
B. Product Information Tool
C. Product Selection Tool
D. Product Comparison Tool |
| Answer: |
C. Product Selection Tool |
| Explanation: |
The Product Selection Tool on Cisco's website can help you determine what type of equipment to choose. |
|
| Question: |
An AS5000 would be typically placed in a ____________. [according to Cisco]
A. Remote Office
B. Home Office
C. Central Site
D. Branch Office |
| Answer: |
C. Central Site |
| Explanation: |
Cisco 3600, AS5000 abd 7200 Series routers are typically found in Central Sites. |
|
| Question: |
Which of the following routers can handle six 12-port T1/E1 trunk cards?
A. AS5350
B. AS5800
C. AS5000
D. AS5400 |
| Answer: |
B. AS5800 |
| Explanation: |
The AS5800 can handle six 12-port T1/E1 trunk cards |
|
| Question: |
Which of the following 800 series have an ISDN connection?
A. 827
B. 805
C. 806
D. 801
E. 803 |
| Answer: |
D. 801
E. 803 |
| Explanation: |
The 801 and 803 router have and ISDN S/T connection. |
|
| Question: |
What type of connections can we use with a DB-60 cable?
A. Frame-Relay
B. ISDN BRI
C. Leased Lines
D. ATM
E. xDSL |
| Answer: |
A. Frame-Relay
C. Leased Lines
|
| Explanation: |
Leased Lines and Frame-Relay use DB-60 or smart serial connectors. |
|
| Question: |
What type of connector does a channelized T1/E1 use?
A. EIA/TIA-232
B. Smart Serial
C. DB-60
D. RJ-45 |
| Answer: |
D. RJ-45 |
| Explanation: |
A channelized T1/E1 uses a RJ-45 connector. |
|
| Question: |
When you encounter the following line in the show interface FastEthernet 0/0 output:
FastEthernet0/0 is up, line protocol is down
What could be the cause?
A. Incorrect pinouts
B. Physical problem
C. Cable not attached
D. Incorrect clockrate |
| Answer: |
A. Incorrect pinouts |
| Explanation: |
The most probably cause of an up/down state on a Ethernet interface is an mispinned cable. |
|
| Question: |
On a serial interface what are possible causes of an interface being in up/down state?
A. Cable not connected
B. Incorrect clock rate
C. Bad cable
D. Incorrect pinout
E. Encapsulation mismatch |
| Answer: |
B. Incorrect clock rate
E. Encapsulation mismatch |
| Explanation: |
Possible causes for a serial interface to be in an up/down state are:
- Keepalive mismatch
- Incorrect clock rate
- Clockrate not set
- Encapsulation mismatch |
|
| Question: |
What does it mean when DTR is on?
A. The device has detected the provider switch.
B. The device notifies the far end it will send data.
C. The device notifies the far end it's ready to receive data.
D. The device is OK to send data. |
| Answer: |
C. The device notifies the far end it's ready to receive data. |
| Explanation: |
When DTR is on the device notifies the far end it's ready to receive data. |
|
| Question: |
Of the following services which could have a HDLC encapsulation?
A. Leased lines
B. Frame-Relay
C. xDSL
D. ATM
E. ISDN
F. Cable |
| Answer: |
A. Leased lines
E. ISDN |
| Explanation: |
Leased Lines and ISDN (BRI and PRI) can use PPP or HDLC encapsulation. |
|
| Question: |
Which pins control the flow of data?
A. DSR
B. CTS
C. DTR
D. TD
E. RTS
F. RD |
| Answer: |
B. CTS
E. RTS |
| Explanation: |
The RTS and CTS pins control the flow of data. |
|
| Question: |
Which of the following designations are controlled by the DTE?
A. DSR
B. RD
C. CTS
D. DTR
E. RTS |
| Answer: |
D. DTR
E. RTS |
| Explanation: |
DTR and RTS are controlled by the DTE. |
|
| Question: |
According to the EIA/TIA-232 standard GRD is found on which pin?
A. 2
B. 4
C. 8
D. 3
E. 5
F. 6
G. 7 |
| Answer: |
G. 7 |
| Explanation: |
| Pin Number | Designation | | 2 | TD | | 3 | RD | | 4 | RTS | | 5 | CTS | | 6 | DSR | | 7 | GRD | | 8 | CD | | 20 | DTR | |
|
| Question: |
When doing reverse telnet, which port range is reserved for telnet(character mode) using rotary groups?
A. 2000-2xxx
B. 6000-6xxx
C. 7000-7xxx
D. 3000-3xxx |
| Answer: |
D. 3000-3xxx |
| Explanation: |
The reserve port range when using rotary groups for telnet in character mode is 3000-3xxx. |
|
| Question: |
Which steps do we need to do to make a modem useable again after using the modem for reverse telnet?
A. exit
B. disconnect
C. CTRL-SHIFT-6 and X
D. logout |
| Answer: |
B. disconnect
C. CTRL-SHIFT-6 and X |
| Explanation: |
First we need to exit the connection using CTRL-SHIFT-6 and X to suspend the session followed by the disconnect router command. |
|
| Question: |
On a Cisco 3640 router what is the reserved line range for slot 2?
A. 65-96
B. 1-32
C. 33-64
D. 97-128 |
| Answer: |
A. 65-96 |
| Explanation: |
Slot 2 has line number 65-96 reserved. |
|
| Question: |
When using an A/S interface, how do we use it as an asynchronous interface?
A. async mode enable
B. no physical-layer sync
C. physical-layer async
D. physical-layer async enable |
| Answer: |
C. physical-layer async |
| Explanation: |
To use an A/S interface as an asynchrounous interface we use the physical-layer async interface configuration command. |
|
| Question: |
How do we let a dialup user use the EXEC commands?
A. async mode dedicated
B. async mode interactive
C. async mode dedicated exec
D. no configuration needed |
| Answer: |
B. async mode interactive |
| Explanation: |
For a dialup user to have access to the SLIP and PPP EXEC commands we use the async mode interactive interface configuration command. |
|
| Question: |
How do we configure the line for incoming and outgoing calls?
A. modem InOut
B. modem InOut enable
C. modem InOut default
D. modem OutIn enable
E. modem OutIn
F. modem OutIn default |
| Answer: |
A. modem InOut |
| Explanation: |
The modem InOut line configuration command enables both incoming and outgoing calls. |
|
| Question: |
Which AT command will turn off local echo?
A. ATE0
B. ATM0
C. ATS0=n
D. AT&C1 |
| Answer: |
A. ATE0 |
| Explanation: |
The ATE0 command turns off local echo. |
|
| Question: |
Which command do we use to see the entries in the modemcap database?
A. show modemcap-database
B. show modemcap
C. show modemcap database
D. show modem-database |
| Answer: |
B. show modemcap |
| Explanation: |
The show modemcap command will display the modemcap database entries. |
|
| Question: |
What are some reasons to use a chat script?
A. Logon to the remote system
B. Disconnecting an active call
C. Provide the user a username
D. Provide the modem with a dial string |
| Answer: |
A. Logon to the remote system
D. Provide the modem with a dial string |
| Explanation: |
Chat scripts can be used for the following:
- Initialization of the modem
- Provide the modem with a dial string
- Logon to the remote system
- Command execution on a remote system |
|
| Question: |
What types of PPP packets are send to configure and test the link?
A. NCP
B. TCP
C. DTR
D. LCP |
| Answer: |
D. LCP |
| Explanation: |
LCP or Link Control Protocol packets are send from each end of the data link to configure and test it. |
|
| Question: |
PPP is defined in which RFC?
A. RFC 1661
B. RFC 1700
C. RFC 1771
D. RFC 2328 |
| Answer: |
A. RFC 1661 |
| Explanation: |
RFC 1661 defines PPP. |
|
| Question: |
Which of the following are not part of PPP capabilities?
A. Header Compression
B. Link Configuration
C. Multiplexing of network layer protocols
D. Error Prevention
E. Authorization |
| Answer: |
D. Error Prevention
E. Authorization |
| Explanation: |
PPP has some of the following capabilities:
- Multiplexing of network layer protocols
- Link configuration
- Link quality testing
- Authentication
- Header compression
- Error detection
- Link parameter negotiation |
|
| Question: |
How can PPP assign a specific IP address to the dialup client on asynchronous interfaces?
A. router(config-if)#peer ip address ip_address
B. router(config-if)#client default ip address ip_address
C. router(config-if)#default ip address ip_address
D. router(config-if)#peer default ip address ip_address |
| Answer: |
A. router(config-if)#peer ip address ip_address |
| Explanation: |
Predefined IP addresses can be assigned using the peer default ip address {ip_address | dhcp | pool poolname} interface configuration command. |
|
| Question: |
Which forms of authentication does PPP support?
A. CHAP
B. MS-CHAP
C. MS-CHAPv2
D. EAP
E. PAP |
| Answer: |
A. CHAP
E. PAP |
| Explanation: |
PPP supports PAP and CHAP authentication. This is what is required for the exam. In real life it also supports the other protocols 12.2 introduced EAP and MS-CHAPv2. |
|
| Question: |
Which of the following are parameters negotiated by LCP?
A. Authorization
B. Callback
C. Multilink PPP
D. Error Prevention |
| Answer: |
B. Callback
C. Multilink PPP |
| Explanation: |
LCP negotiates the following additional options:
- Authentication
- Callback
- Compression
- Multilink PPP |
|
| Question: |
How do we enable CHAP authentication with PAP as 2nd option?
A. router(config-if)#ppp authentication chap pap
B. router(config-if)#ppp authentication pap chap
C. router(config-if)#ppp authentication chap primary pap secondary
D. router(config-ppp)#authentication chap |
| Answer: |
A. router(config-if)#ppp authentication chap pap |
| Explanation: |
To enable CHAP as first choice of authentication and PAP as a backup we use the ppp authentication chap pap interface configuration command. |
|
| Question: |
CHAP uses which hashing algorithm?
A. MD5
B. 3DES
C. DES
D. RSA |
| Answer: |
A. MD5 |
| Explanation: |
CHAP uses MD5 as its hashing algorithm. |
|
| Question: |
Which LCP frames are used to debug a link?
A. LCP-debug frames
B. LCP-termination frames
C. LCP-testing frames
D. LCP-establishment frames
E. LCP-maintenance frames |
| Answer: |
E. LCP-maintenance frames |
| Explanation: |
LCP-maintenance frames are used to manage and debug a link. |
|
| Question: |
What is required on the client side for PPP Callback to work?
A. ppp callback enable
B. ppp callback accept
C. ppp callback request
D. ppp callback |
| Answer: |
C. ppp callback request |
| Explanation: |
One of the requirements on the client side is the ppp callback request interface configuration command. |
|
| Question: |
What command can we use to disconnect calls that are not properly configured for PPP Callback?
A. dialer callback-secure
B. ppp callback-secure
C. ppp authentication callback-secure
D. dialer map ip ip_address name name dialer-string callback-secure |
| Answer: |
A. dialer callback-secure |
| Explanation: |
We can use the dialer callback-secure interface configuration command to disconnect calls that are not properly configured for PPP Callback. |
|
| Question: |
How can we enable bandwidth-on-demand?
A. ppp multilink
B. ppp bandwidth-on-demand enable
C. ppp multilink bod
D. dialer load-threshold |
| Answer: |
D. dialer load-threshold |
| Explanation: |
Bandwidth-on-demand is enabled when the dialer load-threshold interface configuration command is used without the ppp multilink command. |
|
| Question: |
How can we view to which number a B channel is connected?
A. show interface bri0
B. show dialer
C. show dialer detail
D. show interface bri0 detail |
| Answer: |
B. show dialer |
| Explanation: |
The show dialer command will display the number to which a B channel is connected and also the failed and successful calls. |
|
| Question: |
How can we view the PPP LCP communication in real time?
A. debug ppp negotiation
B. debug ppp lcp
C. debug ppp authentication
D. debug ppp cbcp |
| Answer: |
A. debug ppp negotiation |
| Explanation: |
The debug ppp negotiation command will display PPP LCP options during startup of PPP. |
|
| Question: |
What is the total utilized bandwidth used by an ISDN BRI running 2B+D?
A. 128000bps
B. 176000bps
C. 144000bps
D. 192000bps |
| Answer: |
D. 192000bps |
| Explanation: |
The total utilized bandwidth used by an ISDN BRI running 2B+D is 192000bps. This consits of 64000bps for each B channel, 16000bps for the D channel and 48000bps utilized for overhead not seen by the customer. |
|
| Question: |
When there is no D channel what can we configure to issue signaling requests to the ISDN switch?
A. isdn switch type non-native
B. dialer in-band
C. dialer out-band
D. isdn switch type basic
E. dialer non-native |
| Answer: |
B. dialer in-band |
| Explanation: |
The dialer in-band configuration command is used when there is no D channel so that signaling requests can be send to the ISDN switch |
|
| Question: |
Which layer 3 protocol is used on the D channel?
A. PPP
B. IP
C. Q.921
D. DSS1 |
| Answer: |
D. DSS1 |
| Explanation: |
DSS1 or Q.931 is the layer 3 protocol used on the D channel. |
|
| Question: |
Which BRI switch type is used in Europe?
A. Basic-net3
B. Basic-5ess
C. Basic-ts013
D. Basic-dms100 |
| Answer: |
|
| Explanation: |
|
|
| Question: |
What TEI is used for group assignments?
A. 127
B. 0
C. 0-63
D. 64-126 |
| Answer: |
|
| Explanation: |
127 is the TEI or Terminal Endpoint Identifier for group assignments. 0-63 is used for static assignments although 0 is only used for PRI. 64-126 are used for dynamic assignments. |
|
| Question: |
Which of the following carries the logical ISDN layer 2 indentifier?
A. Terminal Endpoint Identifier
B. Data-link Connection Identifier
C. Local Connection Mode Network Service
D. Service Access Point Identifier |
| Answer: |
D. Service Access Point Identifier |
| Explanation: |
The Service Access Point Identifier (SAPI) carries the ISDN Layer 2 logical indentifier. |
|
| Question: |
Which of the following switch types support the use of SPIDs?
A. Basic-nznet3
B. Basic-5ess
C. Ntt
D. vn3
E. Basic-NI-1 |
| Answer: |
B. Basic-5ess
E. Basic-NI-1
|
| Explanation: |
SPIDs are supported by 5ESS, DMS-100 and NI-1 switch types. |
|
| Question: |
Which of the following fields are not in the Address subfield of a LAPD frame?
A. SAPI
B. TEI
C. C/R
D. AI
E. CTRL |
| Answer: |
D. AI
E. CTRL |
| Explanation: |
The address subfield of a LAPD frame consists of:
- SAPI, Service Access Point Identifier, 6 bits
- C/R, Comamnd/Response, 1 bit
- EA, Extended addressing, 1 bit
- TEI, Terminal Endpoint Identifier, 7 bits
- EA, Extended addressing, 1 bit |
|
| Question: |
Which command will display all three layers of ISDN?
A. show isdn active
B. show isdn history
C. show isdn service
D. show isdn status |
| Answer: |
D. show isdn status |
| Explanation: |
The show isdn status command will display all three layers of ISDN. |
|
| Question: |
What is the order to configure basic DDR?
A. Set ISDN switch type, Specify interesting traffic, Configure protocol addressing, Specify static routes, Define int. encap and ISDN addr. parameters, Define any additional interface info.
B. Set ISDN switch type, Specify interesting traffic, Specify static routes, Define int. encap and ISDN addr. parameters, Configure protocol addressing, Define any additional interface info.
C. Set ISDN switch type, Specify interesting traffic, Specify static routes, Configure protocol addressing, Define any additional interface info, Define int. encap and ISDN addr. parameters.
D. Set ISDN switch type, Specify static routes, Specify interesting traffic, Define int. encap and ISDN addr. parameters, Configure protocol addressing, Define any additional interface info. |
| Answer: |
B. Set ISDN switch type, Specify interesting traffic, Specify static routes, Define int. encap and ISDN addr. parameters, Configure protocol addressing, Define any additional interface info. |
| Explanation: |
The configuration tasks for basic DDR are:
- step 1, set the ISDN switch type
- step 2, specify interesting traffic
- step 3, specify static routes
- step 4, define the interface encapsulation and ISDN addressing parameters
- step 5, configure the protocol addressing
- step 6, define any additional inteface information |
|
| Question: |
What needs to be configured to classify only WWW and TFTP traffic as interesting traffic?
A. router(config)#access-list 101 permit ip any any eq www router(config)#access-list 101 permit ip any any eq tftp router(config)#dialer-list 1 protocol ip list 101
B. router(config)#access-list 101 permit tcp any any eq www router(config)#access-list 101 permit udp any any eq tftp router(config)#dialer-list 1 protocol ip list 101
C. router(config)#access-list 101 permit tcp any any eq www router(config)#access-list 101 permit tcp any any eq tftp router(config)#dialer-list 1 protocol list 101
D. router(config)#access-list 101 permit tcp any any eq www router(config)#access-list 101 permit tcp any any eq tftp router(config)#dialer-list 1 protocol ip 101 |
| Answer: |
B. router(config)#access-list 101 permit tcp any any eq www router(config)#access-list 101 permit udp any any eq tftp router(config)#dialer-list 1 protocol ip list 101 |
| Explanation: |
We first create an extended access-list to define the traffic we consider interesting. This list is then used in the dialer-list number protocol ip list access-list-number global configuration command to define the interesting traffic. |
|
| Question: |
What command do we use to associate a dialer-list with the correct interface?
A. access-group list_number
B. dialer-group list_number in
C. dialer-group list_number
D. dialer-class list_number |
| Answer: |
C. dialer-group list_number |
| Explanation: |
The dialer-group list_number interface configuration command will associate a dialer-list with the appropriate interface. |
|
| Question: |
We want to drop the ISDN connection after 180 seconds of idle time. How do we achieve this?
A. dialer idle time 180
B. dialer timer 180
C. dialer idle-timer 180
D. dialer idle-timeout 180 |
| Answer: |
D. dialer idle-timeout 180 |
| Explanation: |
To specify an idle time after which the connection is dropped we use the dialer idle-timeout seconds interface configuration command. |
|
| Question: |
How can we configure the router to accept only calls from specified numbers?
A. dialer answer number
B. dialer map number
C. isdn answer number
D. isdn map number
E. isdn dialer number |
| Answer: |
C. isdn answer number |
| Explanation: |
To configure the router to accept calls from a certain number only we use the isdn answer number interface configuration command. |
|
| Question: |
How do we implement a mechanism so that routing updates are not send out of BRI0 so the link is not unnecessary kept active?
A. router(config)#passive-interface bri 0 protocol
B. router(config)#router protocol router(config-router)#passive-interface bri 0
C. router(config)#interface bri 0 router(config-if)#passive-interface protocol
D. router(config-dialer)#passive-interface |
| Answer: |
B. router(config)#router protocol router(config-router)#passive-interface bri 0 |
| Explanation: |
The use of the passive-interface type number router configuration command will stop updates being sent via that interface. |
|
| Question: |
How can we configure a specific next hop address and bearing in mind we dial into non-native isdn solution?
A. dialer map ip address phone_number speed 56
B. dialer map ip address speed 56 phone_number
C. dialer map ip address phone_number
D. dialer next-hop address phone_number |
