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The Bits and Bytes of Computer Networking > Networking Services > Flashcards

Networking Services Flashcards

1
Q

The most common resource record, used to point a certain domain name at a certain IPv4 IP address

A

A RECORD

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2
Q

A technique that’s used to route traffic to different destinations depending on factors like location, congestion, or link health

A

ANYCAST

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3
Q

A range of IP addresses is set aside for assignment purposes

A

AUTOMATIC ALLOCATION

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4
Q

They are generally provided by an ISP or your local network, and their purpose is to store domain name lookups for a certain amount of time

A

CACHING AND RECURSIVE NAME SERVERS

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5
Q

A resource record used to map one domain to another

A

CNAME

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6
Q

The process by which a client configured to use DHCP attempts to get network configuration information

A

DHCP DISCOVERY

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7
Q

A global and highly distributed network service that resolves strings of letters, such as a website name, into an IP address

A

DOMAIN NAME SYSTEM (DNS)

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8
Q

A portion of space in the Domain Name System (DNS) that is controlled by an authoritative name server

A

DNS ZONES

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9
Q

Used to demarcate where control moves from a top-level domain name server to an authoritative name server

A

DOMAIN

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10
Q

A website name, the part of the URL following www.

A

DOMAIN NAME

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11
Q

A range of IP addresses is set aside for client devices and one of these IPs is issued to these devices when they request one

A

DYNAMIC ALLOCATION

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12
Q

Requires a manually specified list of MAC address and the corresponding IPs

A

FIXED ALLOCATION

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13
Q

When you combine all the parts of a domain together

A

FULLY QUALIFIED DOMAIN NAME

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14
Q

The NAT obscures the sender’s IP address from the receiver

A

IP MASQUERADING

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15
Q

It stands for the mail exchange and this resource record is used in order to deliver mail to the correct server

A

MX RECORD

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16
Q

This process of using DNS to turn a domain name into an IP address

A

NAME RESOLUTION

17
Q

A mitigation tool that lets organizations use one public IP address and many private IP addresses within the network

A

NETWORK ADDRESS TRANSLATION (NAT)

18
Q

It indicates other name servers that may also be responsible for a particular zone

A

NS RECORD

19
Q

Used to keep all computers on a network synchronized in time

A

NTP SERVERS

20
Q

It resolves an IP to a name

A

POINTER RESOURCE RECORD

21
Q

A technique where specific destination ports can be configured to always be delivered to specific nodes

A

PORT FORWARDING

22
Q

A technique where the source port chosen by a client, is the same port used by the router

A

PORT PRESERVATION

23
Q

A server that acts on behalf of a client in order to access another service

A

PROXY SERVICE

24
Q

It is very similar to an A record except that it returns in IPv6 address instead of an IPv4 address

A

QUAD A (AAAA) RECORD

25
Q

Servers that perform full DNS resolution requests

A

RECURSIVE NAME SERVERS

26
Q

They let DNS resolvers ask for an IP, and get the FQDN associated with it returned

A

REVERSE LOOKUP ZONE FILES

27
Q

A service that might appear to be a single server to external clients, but actually represents many servers living behind it

A

REVERSE PROXY

28
Q

It is a concept that involves iterating over a list of items one by one in an orderly fashion

A

ROUND ROBIN

29
Q

A service record used to define the location of various specific services

A

SRV RECORD

30
Q

A declaration of the zone and the name of the name server that is authoritative for it

A

START OF AUTHORITY

31
Q

The top level of the DNS or the last part of a domain name. For example, the “com” in www.weather.com

A

TOP LEVEL DOMAIN (TLD)

32
Q

An 8-bit field that indicates how many router hops a datagram can traverse before it’s thrown away

A

TIME-TO-LIVE FIELD (TTL)

33
Q

A technique where more than just a username and password are required to authenticate. Usually a short-lived numerical token is generated by the user through a specialized piece of hardware or software

A

TWO-FACTOR AUTHENTICATION

34
Q

It stands for text and was originally intended to be used only for associating some descriptive text with a domain name for human consumption

A

TXT RECORD

35
Q

There are five primary types of DNS servers; caching name servers, recursive name servers, root name servers, TLD name servers, and authoritative name servers

A

TYPES OF DNS SERVERS

36
Q

A technology that allows for the extension of a private or local network, to a host that might not work on that same local network

A

VIRTUAL PRIVATE NETWORK (VPN)

37
Q

Simple configuration files that declare all resource records for a particular zone

A

ZONE FILES

The Bits and Bytes of Computer Networking (6 decks)

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