AI-Test Flashcards

Test how good the AI is creating flashcards for me from uploaded sources. (50 cards)

1
Q

Was ist die Hauptaufgabe der Transportschicht (Layer 4)?

A

Erzeugung und Transport von Segmenten zwischen Prozessen über Ende-zu-Ende Protokolle.

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2
Q

Wie erfolgt die Adressierung in der Transportschicht?

A

Adressierung mittels Portnummern (ports).

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3
Q

Was sind die zwei Haupttypen der Kommunikation in der Transportschicht?

A

Verbindungslose (connectionless) und verbindungsorientierte (connection-oriented) Kommunikation.

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4
Q

Nenne zwei Protokolle der Transportschicht.

A
  • User Datagram Protocol (UDP)
  • Transport Control Protocol (TCP)
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5
Q

Was ermöglicht die verbindungsorientierte Kommunikation?

A

Datenflusskontrolle, verlustfreie Lieferung und korrekte Reihenfolge der Segmente.

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6
Q

Was wird bei verbindungsorientierter Kommunikation aufgebaut?

A

Eine virtuelle Ende-zu-Ende-Verbindung mit angeforderter Dienstgüte (QoS).

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7
Q

Was ist die Funktion von TCP?

A

Gewährleistet eine zuverlässige Datenübertragung.

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8
Q

Wie wird die Reihenfolge der Daten in TCP sichergestellt?

A

Durch Nummerierung der Datensegmente.

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9
Q

Was bedeutet das Best-Effort Prinzip in UDP?

A

Keine Behandlung von Zuverlässigkeit und Flow Control, dafür schneller.

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10
Q

Was sind die Hauptfelder im TCP-Header?

A
  • Source/Destination Port
  • Sequence Number
  • Acknowledgment Number
  • Control Bits
  • Window Size
  • Checksum
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11
Q

Was ist der Unterschied zwischen Source Port und Destination Port?

A

Source Port: Zuweisung zur Ursprungsanwendung am lokalen Host; Destination Port: Zuweisung zur Anwendung am entfernten Host.

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12
Q

Fülle die Lücke: Well Known Ports sind für _______ und _______ reserviert.

A

[Services] und [Applikationen]

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13
Q

Nenne ein Beispiel für einen well-known Port.

A

HTTP (Port 80)

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14
Q

Was zeigt die ACK-Nummer im TCP-Header an?

A

Das nächste zu sendende Byte.

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15
Q

Was ist die Aufgabe des 3-Wege-Handshakes in TCP?

A

Verbindungsaufbau zwischen Client und Server.

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16
Q

Was sind die Schritte des 3-Wege-Handshakes?

A
  • SYN
  • SYN/ACK
  • ACK
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17
Q

Was geschieht im TCP 4-Wege-Handshake?

A

Verbindungsabbau.

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18
Q

Was ist die Window Size im Kontext von TCP?

A

Anzahl der Bytes, die vom Ziel der TCP-Session zuverlässig empfangen werden kann.

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19
Q

Was passiert, wenn die Window Size reduziert wird?

A

Es erfolgt Flow Control bei Überlastung.

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20
Q

Was bedeutet es, dass UDP verbindungslos ist?

A

Keine Rückbestätigung, Retransmission, Sequencing oder Flow Control.

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21
Q

Was ist der Vorteil von UDP im Vergleich zu TCP?

A

Weniger Overhead und schnellere Kommunikation.

22
Q

Was sind die Hauptfelder im UDP-Header?

A
  • Source/Destination Port
  • Length
  • Checksum
23
Q

Was ist die Rolle der Source Port Nummer im UDP-Prozess?

A

Dynamische Auswahl der Portnummer.

24
Q

Was geschieht mit den Portnummern in der Server-Response bei UDP?

A

Die Portnummern werden zur Rückadressierung vertauscht.

25
What is the purpose of Activity 6-1?
To determine network information for a given IP address and network mask.
26
What information can be determined from an IP address and network mask?
* Network address * Network broadcast address * Total number of host bits * Number of hosts
27
Given the host IP address 172.25.114.250 and network mask 255.255.0.0, what is the network address?
172.25.0.0
28
How is the network address determined from an IP address and subnet mask?
By performing a bitwise AND operation on the IP address and subnet mask.
29
What does 1 AND 1 result in during a bitwise AND operation?
1
30
What does 0 AND anything result in during a bitwise AND operation?
0
31
In the context of networking, what is a broadcast address?
The address that has all 1s in the host portion of the address.
32
How many host bits are in a network with a /16 subnet mask?
16
33
What is the total number of hosts in a /16 network?
65,536
34
What is the total number of usable hosts in a /16 network?
65,534
35
Fill in the blank: The network address has all ___ in the host portion.
0s
36
Fill in the blank: The broadcast address has all ___ in the host portion.
1s
37
What is the host IP address in Problem 1?
172.30.1.33
38
What is the network mask in Problem 1?
255.255.0.0
39
What is the host IP address in Problem 2?
172.30.1.33
40
What is the network mask in Problem 2?
255.255.255.0
41
What is the host IP address in Problem 3?
192.168.10.234
42
What is the network mask in Problem 3?
255.255.255.0
43
What is the host IP address in Problem 4?
172.17.99.71
44
What is the network mask in Problem 4?
255.255.0.0
45
What is the host IP address in Problem 5?
192.168.3.219
46
What is the network mask in Problem 5?
255.255.0.0
47
What is the host IP address in Problem 6?
192.168.3.219
48
What is the network mask in Problem 6?
255.255.255.224
49
What is the first step in determining network information from an IP address?
Translate the host IP address and network mask into binary notation.
50
What should be done during Task 3?
Remove anything that was brought into the lab and leave the room ready for the next class.