Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

COS 332 - Computer Networks > COS 332 July Exam 2022 > Flashcards

COS 332 July Exam 2022 Flashcards

1
Q

A layer in the protocol stack generally provides services for…

A

the layer above it.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Name two directory access protocols

A
  • LDAP
  • X.500
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

The primary metric used by interior gateway protocols is…

A

cost

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

A Network Information Centre (NIC)…

A
  • provides information about the current status of an ISP’s network
  • allocates IP addresses to ISPs and some other organizations
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Bootstrapping

A

An example of a DHCP protocol which is used by networking administration to give IP addresses to each member of that network for participating with other networking devices by the main server.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

On which ISO OSI layers does error checking primarily occur?

A

2, 4, and 7

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

To organize and rearrange various X11 windows on a display, one needs…

A

A window manager at the X11 server

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Name a data stream that generally works better with an unreliable layer 4 protocol

A

Audio

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

When writing an application that will be a server in a client-server architecture, the open socket in the applications would…

A

wait for connections.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

UTF-8 is deemed to be self-synchronising because…

A

If a transmission error occurs, the recipient will be able to determine where a new character starts

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

A multipart MIME representation uses a ‘boundary’ to indicate..

A

the start of a new part.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

A multipart MIME representation boundary contains…

A

A random string of characters

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

TCP attempts to reduce data loss on a network under the assumption that . . . is the primary cause of data loss.

A

congestion

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

IPng is currently referred to as…

A

IPv6

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

20.15.1.1 would have been a class . . . network address.

A

A

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Multicasting

A

How routers within an organization typically discover other routers on OSI layer 3.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

IPv4 addresses are typically used…

A

in routing tables, to identify a network.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

The IPv4 private network address ranges.

A

10.0.0.0 to 10.255.255.255
172.16.0.0 to 172.31.255.255
192.168.0.0 to 192.168.255.255

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

In a routing table, the entry 0.0.0.0/0

A

identifies the default gateway

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

If a router sends a destination unreachable ICMP message, the value of the ICMP code field will:

A

explain the reason the destination is unreachable.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

In networking, ‘tunneling’ refers to

A

encapsulating packets of one protocol in packets of another protocol, where the second protocol was not designed to carry packets of the former protocol.

22
Q

A BBS (bulletin board system) was mostly used for

A

Uploading and downloading software

23
Q

The nom.za domain is intended to allow…

A

individuals to register subdomains within it.

24
Q

IANA’s website

A

The place to obtain an authoritative list of TLD registries from.

25
Q

This ISO OSI layer is useful in web conferencing, in which the streams of audio and video must be synchronous.

A

Layer 5

26
Q

EGPs

A

Exterior Gateway Protocols - The class of protocols used for routing between autonomous systems

27
Q

In a client-server model, interaction between the client and the server is best characterized as…

A

the exchange of requests and responses

28
Q

For X11 output, one can generally control the size of the displayed window through the . . . parameter

A

Geometry

29
Q

If MIME is deemed to be a data communications protocol, it would fit best on . . . of the ISO OSI model

A

Layer 6

30
Q

Fieldata

A

An old character encoding scheme

31
Q

Which person worked as the RFC-editor in the early years of the internet?

A

Jon Postel

32
Q

Accept-Charset

A

A header used by an HTTP header to indicate the character encodings it is able to handle

33
Q

Name 3 ASN.1 constructors.

A
  • CHOICE
  • SEQUENCE
  • SET
34
Q

Base64 is a popular content transfer encoding that represents…

A

arbitrary data using 7-bit ASCII values.

35
Q

Reliable protocols are usually …

A

connection-oriented

36
Q

A window advertisement in a TCP segment indicates…

A

the available memory in the receive buffer of the sender

37
Q

When port classifications are sorted from the class containing the lowest port numbers to the class containing the highest port numbers, the resulting order would be…

A

Well-known, Registered, Dynamic

38
Q

The notion of ‘port forwarding’ is important in the context of

A

NAT boxes

39
Q

Zero suppression in IPv6

A

One continuous sequence of zero-valued field in any address may be omitted, and the omission is indicated using two adjacent colons.

40
Q

IPSEC

A

A standard that is useful in the encryption of messages on each link between routers

41
Q

Name five (5) fields in a TCP header

A
  • Destination Port
  • Source Port
  • Sequence Number (SEQ)
  • Acknowledgement Number (ACK)
  • Window
42
Q

The RIR which manages Africa.

A

AFRINIC

43
Q

The RIR which manages Asia and the Pacific.

A

APNIC

44
Q

The RIR which manages North America.

A

ARIN

45
Q

The RIR which manages Latin America.

A

LACNIC

46
Q

The RIR which manages Europe, the Middle East and parts of Central Asia.

A

RIPE

47
Q

NAT Box

A

A NAT box connects an internal network to en external network

48
Q

Class A IP address range

A

1.0.0.0 - 127.0.0.0

49
Q

Class B IP address range

A

128.0.0.0 - 191.255.0.0

50
Q

Class C IP address range

A

192.0.0.0 - 223.255.255.0

51
Q

Class D IP address range

A

224.0.0.0 - 239.255.255.255

52
Q

Class E IP address range

A

240.0.0.0 - 255.255.255.255

COS 332 - Computer Networks (5 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions