Netzwerke

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Application

Presentation

Session

Transport

Network

Data-Link

Physikal

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On which layers of the OSI model does a transceiver work? (Choose one):

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On which layers of the OSI model does a hub work? (Choose one):

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Which physical topology is used in the presence of a hub? (Choose one):

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On which layers of the OSI model does the switch work? (Choose two):

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Which physical topology is used in the presence of a switch? (Choose one):

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Which parameters are stored in the switching table of a switch? (Choose three):

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A 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?

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What will the switch do in the MAC-table in the case of question 8? (Choose one):

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What 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):

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Which organization is responsible for the global administration of network numbers of an
IP address? (Choose one):

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Which facts hold for private IPv4 addresses? (Choose 3):

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Which of the following IPv4 host adresses are globally routable? Assume default subnet
masks according to the network class. (Choose 3)

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What is the dotted decimal representation of the following IPv4 address given in binary
format (Chose one) 10100001.00111010.10101100.00001110

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Consider 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):

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What 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)

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How can reflection in a copper cable be avoided (choose one):

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What are types of noise (choose two):

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How can thermal noise be decreased (choose one):

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How can EMI reduced in a copper cable (choose two):

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Which layers of the OSI-model are standardized by the IEEE (choose all that apply):

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Which are fields of an Ethernet frame (choose three):

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Which are fields of an IEEE 802.3-frame (choose three):

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Choose all network layer protocols you know:

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Which protocols belong to the application layer? Click all that apply:

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Which layers in the OSI- and TCP/IP model are identical in their functionality
(choose two)?

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Which functionality belongs to TCP (choose three):

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Which functionality belongs to UDP (choose three):

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SIP is used for (choose two):

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Which layer describes end-to-end-delivery of segments (choose one):

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Which layer describes the delivery of frames (choose one):

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Which are protocols of the Data Link Layer (choose three):

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Which term describes Gnutella best?

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Which term describes Wiki best?

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Which term describes Instant Messaging best?

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What describes SMB respectively SAMBA best?

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What is the disadvantage of a connection-less network?

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What are features of the internet (choose three):

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What are the features of peer-to-peer networks (choose two)?

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Which devices are network devices (choose all that apply):

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Which media technologies in communication networks do you know (choose three)?

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Calculate the number of possible connections between 8 nodes in a full mesh network:

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Calculate the number of possible connections between 6 nodes in a full mesh network:

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Calculate the decimal value of the binary number 10101011(binary):

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Calculate the binary number of decimal 158dec:

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Calculate the hex value of the following 12 bits: 1011 1001 1110:

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Fragengebiete 5 und 6. Fehler vorbehalten

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On which layers of the OSI model does a transceiver work? (Choose one):

On which layers of the OSI model does a hub work? (Choose one):

Which physical topology is used in the presence of a hub? (Choose one):

On which layers of the OSI model does the switch work? (Choose two):

Which physical topology is used in the presence of a switch? (Choose one):

Which parameters are stored in the switching table of a switch? (Choose three):

A 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?

What will the switch do in the MAC-table in the case of question 8? (Choose one):

What 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):

Which organization is responsible for the global administration of network numbers of an IP address? (Choose one):

Which facts hold for private IPv4 addresses? (Choose 3):

Which of the following IPv4 host adresses are globally routable? Assume default subnet masks according to the network class. (Choose 3)

What is the dotted decimal representation of the following IPv4 address given in binary format (Chose one) 10100001.00111010.10101100.00001110

Consider 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):

What 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)

How can reflection in a copper cable be avoided (choose one):

What are types of noise (choose two):

How can thermal noise be decreased (choose one):

How can EMI reduced in a copper cable (choose two):

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❌
❌
❌
❌
❌
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Which organization is responsible for the global administration of network numbers of an
IP address? (Choose one):

Which of the following IPv4 host adresses are globally routable? Assume default subnet
masks according to the network class. (Choose 3)

What is the dotted decimal representation of the following IPv4 address given in binary
format (Chose one) 10100001.00111010.10101100.00001110

Which layers in the OSI- and TCP/IP model are identical in their functionality
(choose two)?