Test
CCNA - 2 - 2
Preguntas del test (21)
1Which two functions are provided by the upper layers of the OSI model? (Choose two.)
- Aplacing electrical signals on the medium for transmission
- Binitiating the network communication process
- Cencrypting and compressing data for transmission
- Dsegmenting and identifying data for reassembly at the destination
- Echoosing the appropriate path for the data to take through the network
2Which is a function of the transport layer of the OSI model?
- Aroutes data between networks
- Bconverts data to bits for transmission
- Cdelivers data reliably across the network using TCP
- Dformats and encodes data for transmission
- Etransmits data to the next directly connected device
3Which common Layer 1 problem can cause a user to lose connectivity?
- Aincorrect subnet mask
- Bincorrect default gateway
- Cloose network cable
- DNIC improperly installed
4Which three command line utilities are most commonly used to troubleshoot issues at Layer 3? (Choose three.)
- Aping
- Ba packet sniffer
- CTelnet
- Dipconfig
- ETraceroute
5Which address is used by the router to direct a packet between networks?
- Asource MAC address
- Bdestination MAC address
- Csource IP address
- Ddestination IP address
6What is the correct encapsulation order when data is passed from Layer 1 up to Layer 4 of the OSI model?
- Abits, frames, packets, segments
- Bframes, bits, packets, segments
- Cpackets, frames, segments, bits
- Dsegments, packets, frames, bits
7What are two goals of the ISP help desk? (Choose two.)
- Aconserving support resources
- Bnetwork optimization
- Ccompetitive scalability
- Dcustomer retention
- Esales of network services
8In what two ways do Level 1 and Level 2 help desk technicians attempt to solve a customer's problems? (Choose three.)
- Atalking to the customer on the telephone
- Bupgrading hardware and software
- Cusing various web tools
- Dmaking an onsite visit
- Einstalling new equipment
- Fwith remote desktop sharing applications
9A customer calls the help desk about setting up a new PC and cable modem and being unable to access the Internet. What three questions would the technician ask if the bottom-up troubleshooting approach is used? (Choose three.)
- A Is the NIC link light blinking?
- BWhat is the IP address and subnet mask?
- CCan the default gateway be successfully pinged?
- Dis the network cable properly attached to the modem?
- EIs the Category 5 cable properly connected to the network slot on the PC?
- FCan you access your e-mail account?
10A customer calls to report a problem accessing an e-commerce web site. The help desk technician begins troubleshooting using a top-down approach. Which question would the technician ask the customer first?
- ACan you access other web sites?
- BIs there a firewall installed on your computer?
- CWhat is your IP address?
- Dis the link light lit on your NIC card?
11Which statement describes the process of escalating a help desk trouble ticket?
- AThe help desk technican resolves the customer problem over the phone and closes the trouble ticket.
- BRemote desktop utilities enable the help desk technician to fix a configuration error and close the trouble ticket.
- CAfter trying unsuccessfully to fix a problem, the help desk technician sends the trouble ticket to the onsite support staff.
- DWhen the problem is solved, all information is recorded on the trouble ticket for future reference.
12What are two functions of the physical layer of the OSI model? (Choose two.)
- Aadding the hardware address
- Bconverting data to bits
- Cencapsulating data into frames
- Dsignal generation
- Erouting packets
13A customer calls the ISP help desk after setting up a new PC with a cable modem but being unable to access the Internet. After the help desk technician has verified Layer 1 and Layer 2, what are three questions the help desk technician should ask the customer? (Choose three.)
- AWhat is your subnet mask?
- BWhat is your IP address?
- CIs the NIC link light blinking?
- DCan you ping the default gateway?
- EIs the network cable properly attached to the cable modem?
- FIs the network cable correctly connected to the network port on the PC?
14Which scenario represents a problem at Layer 4 of the OSI model?
- AAn incorrect IP address on the default gateway.
- BA bad subnet mask in the host IP configuration.
- CA firewall filtering traffic addressed to TCP port 25 on an email server.
- DAn incorrect DNS server address being given out by DHCP.
15What are two basic procedures of incident management? (Choose two.)
- Aopening a trouble ticket
- Busing diagnostic tools to identify the problem
- Csurveying network conditions for further analysis
- Dconfiguring new equipment and software upgrades
- Eadhering to a problem-solving strategy
- Fe-mailing a problem resolution to the customer
16Which level of support is supplied by an ISP when providing managed services?
- ALevel 1
- BLevel 2
- CLevel 3
- DLevel 4
17What is the first step that is used by a help desk technician in a systematic approach to helping a customer solve a problem?
- Aidentify and prioritize alternative solutions
- Bisolate the cause of the problem
- Cdefine the problem
- Dselect an evaluation process
18A network technician has isolated a problem at the transport layer of the OSI model. Which question would provide further information about the problem?
- ADo you have a firewall that is configured on your PC?
- BDo you have a link light on your network card?
- CIs your PC configured to obtain addressing information using DHCP?
- DWhat default gateway address is configured in your TCP/IP settings?
- ECan you ping http://www.cisco.com?
19An ISP help desk technician receives a call from a customer who reports that no one at their business can reach any websites, or get their e-mail. After testing the communication line and finding everything fine, the technician instructs the customer to run nslookup from the command prompt. What does the technician suspect is causing the customer's problem?
- Aimproper IP address configuration on the host
- Bhardware failure of the ISR used to connect the customer to the ISP
- Cbad cables or connections at the customer site
- Dfailure of DNS to resolve names to IP addresses
20Which layers of the OSI model are commonly referred to as the upper layers?
- Aapplication, presentation, session
- Bapplication, session, network
- Cpresentation, transport, network
- Dpresentation, network, data link
- Esession, transport, network
21Refer to the exhibit. Host A is unable to communicate with any other hosts. On this network is a DHCP server that is responsible for assigning addresses to hosts. Based on the output of the ipconfig command on host A, what is the most likely cause of the problem?
- AThe host did not get addressing configuration from the DHCP server.
- BThe DNS server could not be reached.
- CThe default gateway interface is down.
- DThe IP address is a public address and should be private
Información
- Descripción
- Test sobre CCNA - 2 - 2, creado por Róbert Lakatos el 31/03/2014.
- Autor
- Róbert Lakatos
- Idioma
- English
- Visitas
- 470
- Valoración
- Aún sin valoraciones Valora este test