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Cybersecurity 1 > 101 > Flashcards

101 Flashcards

1
Q

What does ARP stand for?

A

Address Resolution Protocol

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2
Q

True or False: ARP is used to map IP addresses to MAC addresses.

A

True

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3
Q

What type of protocol is ARP?

A

A network layer protocol

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4
Q

Fill in the blank: ARP operates primarily within the ______ layer of the OSI model.

A

Data Link

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5
Q

What does DNS stand for?

A

Domain Name System

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6
Q

True or False: DNS translates domain names into IP addresses.

A

True

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7
Q

What kind of records does DNS use to store information?

A

Resource Records

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8
Q

Which DNS record type is used to map a domain to an IPv4 address?

A

A record

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9
Q

What is the purpose of an MX record in DNS?

A

To specify the mail server for a domain

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10
Q

Fill in the blank: The ARP request is sent as a ______ broadcast.

A

Layer 2

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11
Q

What protocol does DNS primarily use for communication?

A

UDP (User Datagram Protocol)

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12
Q

True or False: ARP can only resolve addresses on the same local network.

A

True

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13
Q

What is the primary function of a DNS resolver?

A

To query DNS servers on behalf of the client

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14
Q

Which port does DNS typically use?

A

Port 53

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15
Q

What is the role of a DNS server in the resolution process?

A

To respond to queries with the requested IP address

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16
Q

True or False: ARP caches are used to store recently resolved IP-to-MAC address mappings.

A

True

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17
Q

What is the maximum length of a DNS label?

A

63 characters

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18
Q

Fill in the blank: A ______ is a sequence of DNS labels separated by dots.

A

Fully Qualified Domain Name (FQDN)

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19
Q

What is the purpose of the ARP cache timeout?

A

To remove stale entries that may no longer be valid

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20
Q

What does TTL stand for in the context of DNS?

A

Time to Live

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21
Q

True or False: DNS uses a hierarchical structure for naming.

A

True

22
Q

What is a CNAME record used for in DNS?

A

To create an alias for another domain name

23
Q

What happens when an ARP request is sent?

A

The device sends a broadcast asking for the MAC address associated with an IP address.

24
Q

Which layer of the OSI model does DNS operate at?

A

Application layer

25
Q

Fill in the blank: ARP operates in a ______ network environment.

A

Local

26
Q

What is the primary benefit of using DNS over IP addresses?

A

Easier to remember and manage than numerical addresses.

27
Q

What does ARP stand for?

A

Address Resolution Protocol

28
Q

True or False: ARP is used to map IP addresses to MAC addresses.

A

True

29
Q

What type of protocol is ARP?

A

A network layer protocol

30
Q

Fill in the blank: ARP operates primarily within the ______ layer of the OSI model.

A

Data Link

31
Q

What does DNS stand for?

A

Domain Name System

32
Q

True or False: DNS translates domain names into IP addresses.

A

True

33
Q

What kind of records does DNS use to store information?

A

Resource Records

34
Q

Which DNS record type is used to map a domain to an IPv4 address?

A

A record

35
Q

What is the purpose of an MX record in DNS?

A

To specify the mail server for a domain

36
Q

Fill in the blank: The ARP request is sent as a ______ broadcast.

A

Layer 2

37
Q

What protocol does DNS primarily use for communication?

A

UDP (User Datagram Protocol)

38
Q

True or False: ARP can only resolve addresses on the same local network.

A

True

39
Q

What is the primary function of a DNS resolver?

A

To query DNS servers on behalf of the client

40
Q

Which port does DNS typically use?

A

Port 53

41
Q

What is the role of a DNS server in the resolution process?

A

To respond to queries with the requested IP address

42
Q

True or False: ARP caches are used to store recently resolved IP-to-MAC address mappings.

A

True

43
Q

What is the maximum length of a DNS label?

A

63 characters

44
Q

Fill in the blank: A ______ is a sequence of DNS labels separated by dots.

A

Fully Qualified Domain Name (FQDN)

45
Q

What is the purpose of the ARP cache timeout?

A

To remove stale entries that may no longer be valid

46
Q

What does TTL stand for in the context of DNS?

A

Time to Live

47
Q

True or False: DNS uses a hierarchical structure for naming.

A

True

48
Q

What is a CNAME record used for in DNS?

A

To create an alias for another domain name

49
Q

What happens when an ARP request is sent?

A

The device sends a broadcast asking for the MAC address associated with an IP address.

50
Q

Which layer of the OSI model does DNS operate at?

A

Application layer

51
Q

Fill in the blank: ARP operates in a ______ network environment.

A

Local

52
Q

What is the primary benefit of using DNS over IP addresses?

A

Easier to remember and manage than numerical addresses.

Cybersecurity 1 (3 decks)

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