Test
Netzwerke
Este test tiene tipos de pregunta que se abren en el reproductor de siempre.
Preguntas del test (47)
1[blank_start]Application[blank_end]
[blank_start]Presentation[blank_end]
[blank_start]Session[blank_end]
[blank_start]Transport[blank_end]
[blank_start]Network[blank_end]
[blank_start]Data-Link[blank_end]
[blank_start]Physikal[blank_end]- AApplication
- BPresentation
- CSession
- DTransport
- ENetwork
- FData-Link
- GPhysikal
2On which layers of the OSI model does a transceiver work? (Choose one):
- AApplication
- BData Link
- CNetwork
- DTransport
- EPhysical
3On which layers of the OSI model does a hub work? (Choose one):
- AApplication
- BData Link
- CNetwork
- DTransport
- EPhysical
4Which physical topology is used in the presence of a hub? (Choose one):
- AMesh
- BStar
- CBus
- DRing
- EExtended star
5On which layers of the OSI model does the switch work? (Choose two):
- AApplication
- BData Link
- CNetwork
- DPhysical
- ETransport
6Which physical topology is used in the presence of a switch? (Choose one):
- ABus
- BRing
- CStar
- DExtended star
- EMesh
7Which parameters are stored in the switching table of a switch? (Choose three):
- ASource MAC address of a frame
- BDestination MAC address of a frame
- CType of frame
- DPort number
- EFrame Check Sequence FCS
- FAge of entry
- GIP-header
8A switch has learned where a computer with a given MAC address is connected to, but looses this information later. What is the most probable reason of this behavior?
- AAn administrator has deleted the entry
- BFlooding of a frame has deleted the entry
- CThe connected computer has deleted the entry
- DTimer of switching table aged out
- EThe destination MAC address of an errornous frame deleted the entry
9What will the switch do in the MAC-table in the case of question 8? (Choose one):
- ADeleting entry for port Fa1
- BInserting Destination MAC-address
- CDeleting entry for port Fa9
- DRestart the timer for port Fa1
- EInserting source MAC-Adress
- FRestarting timer for port Fa9
10What will the switch do in the MAC-table in the case of question 9 (auf dem bild steht 10 aber es ist das richtige Bild)? (Choose one):
- ADeleting entry for port Fa1
- BInserting Destination MAC-address
- CDeleting entry for port Fa9
- DRestart the timer for port Fa1
- EInserting Source MAC-address
- FRestarting the timer for port Fa9
11Which organization is responsible for the global administration of network numbers of an
IP address? (Choose one):- ALocal network administrator
- BNIC
- CCIA / NSA
- DRIPE
- EIANA /ICANN
12Which facts hold for private IPv4 addresses? (Choose 3):
- AIt does not access the physical network
- BIt can be applied to isolated hosts which are not directly accessible from the global internet.
- CThere are 3 IPv4 address ranges defined for private IP addresses.
- D10.255.255.255 is a possible private IP network address.
- E192.168.1.12 is a possible private IP host address.
- F172.16.1.258 is a possible private IP host address.
- G172.33.1.12 is a possible private IP host address.
13Which of the following IPv4 host adresses are globally routable? Assume default subnet
masks according to the network class. (Choose 3)- A194.168.1.0
- B198.168.1.1
- C180.168.1.255
- D192.168.1.266
- E11.12.13.14
- F10.11.12.13
- G172.16.1.1
- H127.0.0.1
14What is the dotted decimal representation of the following IPv4 address given in binary
format (Chose one) 10100001.00111010.10101100.00001110- A160.58.172.14
- B161.58.172.10
- C161.58.172.14
- D161.59.172.14
- E161.58.171.10
15Consider a classful IPv4 address with 16 bits network portion and 16 bits host portion. What statements hold for this type of address. (Choose four answers):
- AClass A address
- BClass B address
- CA possible network address is 200.201.0.0 .
- DA possible network address is 130.131.0.0 .
- EA possible network address is 80.81.0.0 .
- FEach network may have up to 255 hosts.
- GEach network may have up to 65 534 hosts.
- HThe default subnet mask is 255.0.0.0 .
- IThe default subnet mask is 255.255.0.0 .
- JThe default subnet mask is 255.255.255.0 .
16What is the range of valid IP addresses that can be assigned to hosts in the IP network with the network number 212.126.53 and default network mask. (Choose for 2)
- AFirst host address = 212.126.53.0
- BFirst host address = 212.126.53.1
- CFirst host address = 212.126.54.0
- DLast host address = 212.126.53.254
- ELast host address = 212.126.53.255
- FLast host address = 212.126.53.256
17How can reflection in a copper cable be avoided (choose one):
- AThicker wires
- BImpedance of attached network components must be equal to the impedance of the cable
- CImpedance of attached network components must be higher as the impedance of the cable
- DImpedance of attached network components must be smaller as the impedance of the cable
- EThinner wires
18What are types of noise (choose two):
- ASurrounding noise
- BThermal noise
- CResistance noise
- DCoil noise
- ENear-end crosstalk
- FFar-end thermal noise
19How can thermal noise be decreased (choose one):
- ANever
- BCooling of components
- CSmaller voltage
- DSmaller current
- EMetal housing
20How can EMI reduced in a copper cable (choose two):
- AMetal housing
- BShielding
- CCooling
- DThicker wires
- ECancellation of electromagnetic fields
- FCancellation of static electric fields
21Which layers of the OSI-model are standardized by the IEEE (choose all that apply):
- ALayer 1
- BLayer 2
- CLayer 3
- DLayer 4
- ELayer 5
22Which are fields of an Ethernet frame (choose three):
- APreamble
- BTime to live TTL
- CProtocol
- DType
- ELength
- FLLC
- GSource IP address
- HDestination MAC address
23Which are fields of an IEEE 802.3-frame (choose three):
- ATime to live TTL
- BOffset
- CLength
- DStart of Frame Delimiter
- EDestination IP address
- FSource MAC address
- GProtocol
24Choose all network layer protocols you know:
- AIPX
- BATM
- CEthernet
- DIP
- ETCP
- FICPM
- GApple Talk
25Which protocols belong to the application layer? Click all that apply:
- ADECNET
- BPOPv3
- CUDP
- DSIP
- ETelnet
- FFrame Relay
- GISDN
- HHTTP
26Which layers in the OSI- and TCP/IP model are identical in their functionality
(choose two)?- AApplication
- BData Link
- CNetwork
- DSession
- EPresentation
- FTransport
- GNetwork Access
27Which functionality belongs to TCP (choose three):
- AFast
- BError detection only
- CCongestion control
- DFlow control
- EUnreliable
- FReliable
- GConnection-less
28Which functionality belongs to UDP (choose three):
- AFast
- BError correction
- CCongestion control
- DFlow control
- EUnreliable
- FReliable
- GConnection-less
29SIP is used for (choose two):
- ATransferring E-mails
- BCall establishment for IP-telephony
- CDownload HTML-pages
- DChatting
- ESignaling for IP-video
- FWikis
30Which layer describes end-to-end-delivery of segments (choose one):
- APhysical
- BData Link
- CNetwork
- DTransport
- ESession
- FPresentation
- GApplication
31Which layer describes the delivery of frames (choose one):
- APhysical
- BData Link
- CNetwork
- DTransport
- ESession
- FPresentation
- GApplication
32Which are protocols of the Data Link Layer (choose three):
- ATCP
- BIPX
- CFrame Relay
- DDNS
- ESIP
- FATM
- GEthernet
33Which term describes Gnutella best?
- AOffline text-based communication service
- BHierarchical file-sharing service
- CPeer-to-peer file-sharing service
- DReal-time text-based communications service
- ECollaboration tool
- FTool for sending and receiving electronic mails
- GTool for groups of people to edit and view web-pages together
- HRetrieval service for HTML-pages
34Which term describes Wiki best?
- AOffline text-based communication service
- BHierarchical file-sharing service
- CPeer-to-peer file-sharing service
- DReal-time text-based communication service
- ECollaboration tool
- FTool for sending and receiving electronic mails
- GTool for groups of people to edit and view web-pages together
- HRetrieval service for HTML-pages
35Which term describes Instant Messaging best?
- AOffline text-based communication service
- BHierarchical file-sharing service
- CPeer-to-peer file-sharing service
- DReal-time text-based communication service
- ECollaboration tool
- FTool for sending and receiving electronic mails
- GTool for groups of peoples to edit and view web-pages together
- HRetrieval service for HTML-pages
36What describes SMB respectively SAMBA best?
- AShort-term file-sharing tool in a client-server architecture
- BTool for chatting
- CLong-term file-sharing tool in a peer-to-peer architecture
- DTool for weblog
- ELong-term file-sharing tool in a client-server architecture
- FShort-term file-sharing tool in a peer-to-peer architecture
37What is the disadvantage of a connection-less network?
- AFast
- BError-recovery
- CRetransmission
- DSender does not know if receiver is operable
- EMessages cannot get lost without notification of receiver
38What are features of the internet (choose three):
- AIt requires a connection oriented network for all applications
- BData packets can travel multiple paths through the network
- CIt allows for billing of network by the amount of time a connection is established
- DIt can rapidly adapt to the loss of data transmission facilities
- EIt efficiently utilizes the network infrastructure to transfer data
39What are the features of peer-to-peer networks (choose two)?
- AOnly a small server is needed
- BClients run a dedicated server software
- CHigh bit-rates are possible
- DNo management procedures are necessary
- EEach machine is client and server
40Which devices are network devices (choose all that apply):
- APC
- BAccess point
- CPrinter
- DRouter
- ESwitch
- FLaptop
- GFirewall
41Which media technologies in communication networks do you know (choose three)?
- AVideo
- BCopper cable
- CCircuit
- DWireless
- EFiber
- FMPEG4
- GMP3
42Calculate the number of possible connections between 8 nodes in a full mesh network: [blank_start]28[blank_end]
- A28
43Calculate the number of possible connections between 6 nodes in a full mesh network: [blank_start]15[blank_end]
- A15
44Calculate the decimal value of the binary number 10101011(binary): [blank_start]171[blank_end]
- A171
45Calculate the binary number of decimal 158dec: [blank_start]10011110[blank_end]
- A10011110
46Calculate the hex value of the following 12 bits: 1011 1001 1110: [blank_start]B9E[blank_end]
- AB9E
47Calculate the decimal value of the hexadecimal number: 11Ahex: [blank_start]282[blank_end]
- A282
Información
- Descripción
- Fragengebiete 5 und 6. Fehler vorbehalten
- Autor
- ludwig.alwin
- Idioma
- English
- Visitas
- 455
- Etiquetas
- Valoración
- Aún sin valoraciones Valora este test