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CompTIA A+ > 1101 2.5 SOHO Network Setup > Flashcards

1101 2.5 SOHO Network Setup Flashcards

1
Q

What is the primary function of IP addressing in network communication?

A

IP addressing allows different devices on a network to identify and communicate with each other.

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2
Q

How many bits are in an IPv4 address?

A

There are 32 bits in an IPv4 address.

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3
Q

What is the maximum value of an octet in an IPv4 address?

A

The maximum value is 255.

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4
Q

What is the typical notation for an IPv6 address?

A

IPv6 addresses are typically noted in hexadecimal format.

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5
Q

How many bits are in an IPv6 address?

A

There are 128 bits in an IPv6 address.

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6
Q

What is the purpose of a subnet mask in IP configuration?

A

A subnet mask is used to determine what subnet an IP address belongs to.

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7
Q

What type of IP addresses are assigned by DHCP?

A

DHCP assigns dynamic IP addresses.

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8
Q

What does APIPA stand for and when is it used?

A

Automatic Private IP Addressing, used when a DHCP server is not available.

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9
Q

What is the range of APIPA addresses?

A

169.254.1.0 to 169.254.254.255.

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10
Q

What does the gateway address in a network setup do?

A

It allows communication with external networks.

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11
Q

What is the difference between a public IP address and a private IP address?

A

Public IP addresses are routable on the internet, while private IPs are used within local networks and are not routable on the internet.

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12
Q

What is the standard subnet mask for a typical home network using IPv4?

A

255.255.255.0.

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13
Q

Why might you need to manually configure an IP address instead of using DHCP?

A

For devices that require a permanent IP address, like servers or network printers.

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14
Q

What is a DNS server’s role in a network?

A

To translate domain names like www.google.com into IP addresses.

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15
Q

What IPv6 address is typically used for testing?

A

FE80::

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16
Q

What are the two primary types of IP address configuration?

A

Static and dynamic.

17
Q

How does DHCP assign IP addresses?

A

Through a four-step process known as DORA (Discover, Offer, Request, Acknowledge).

18
Q

What is the function of a DHCP relay?

A

To forward DHCP packets between clients and servers on different subnets.

19
Q

Explain what happens during the ‘Discover’ step of the DHCP process.

A

The client sends a broadcast to locate available DHCP servers.

20
Q

What information does a DHCP ‘Offer’ contain?

A

It contains an IP address offer along with subnet mask, default gateway, and possibly other configuration details.

21
Q

What does the client do during the ‘Request’ step in DHCP?

A

The client sends a request back to the server to accept the offered IP address.

22
Q

Describe what happens in the ‘Acknowledge’ step of the DHCP process.

A

The DHCP server confirms the IP configuration with the client, finalizing the address lease.

23
Q

What is the purpose of having two DNS servers listed in a network configuration?

A

For redundancy, to ensure DNS availability if one server fails.

24
Q

What are the first and last 256 addresses in the APIPA range reserved for?

A

They are reserved for network protocols; they are not assigned to host devices.

25
Q

What is a DHCP reservation?

A

A DHCP reservation is a permanent assignment of a specific IP address to a specific device, based on its MAC address.

26
Q

How does an IPv6 subnet differ from an IPv4 subnet in terms of bits used for addressing?

A

IPv6 commonly uses a 64-bit subnet mask, splitting the address into equal network and host portions.

27
Q

Why might a network administrator prefer to use static IP addresses for certain devices?

A

To ensure that critical devices like servers have a consistent IP address for accessibility and management.

28
Q

What happens if a device configured to get an IP address via DHCP cannot find a DHCP server?

A

The device will automatically assign itself an APIPA address, allowing local network communication only.

CompTIA A+ (26 decks)

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