Questions and Answers
What is eight bits of data called?
octet
There are ____ octets in an IP address.
Four
Under which IP header field would QoS details be found?
Service Type Field
Which IP address is Class C? Select one.
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What does ARP stand for?
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What does CIDR stand for?
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What is the third step in the transmission of a packet?
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Interior gateway protocols are used by routers in order to share information within a single...
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What protocol communicates data between routers representing the edges of autonomous systems?
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Which of the following IP address ranges have been defined as non-routable address space? Select all that apply.
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What address will stay the same regardless of the network a device is attached to?
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In a Class A address, the possible values for the first octet are:
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What is the purpose of an ARP response?
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When describing blocks of IP addresses, what does CIDR do?
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How many bits long is an Autonomous System Number (ASN)?
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Ranges of IP addresses anyone can use for their internal networks are known as ______.
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Generally, what are Class E IP addresses used for?
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Why do entries in a local Address Resolution Protocol (ARP) table expire after a short amount of time?
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What organization helps manage IP address allocation and autonomous system number allocation?
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What does RFC stand for?
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Study Notes
Network Layer Concepts
- Eight bits of data are referred to as an octet.
- An IP address consists of four octets.
Quality of Service (QoS)
- QoS services allow routers to prioritize certain IP datagrams over others.
- Relevant QoS details are found in the Service Type Field of the IP header.
IP Address Classes
- A Class C IP address falls within the range of 192.37.48.98.
- In a Class A address, the first octet can have a value between 0-127.
Address Resolution
- ARP stands for Address Resolution Protocol, which translates IP addresses to MAC addresses.
Routing Protocols
- CIDR stands for Classless Inter-Domain Routing, which uses subnet masks for network delineation.
- Interior gateway protocols share routing information within a single autonomous system.
- Routers use exterior gateway protocols to communicate data representing the edges of autonomous systems.
IP Address Space
- Defined ranges of non-routable address space include 10.0.0.0/8, 172.16.0.0/12, and 192.168.0.0/16.
- The address that remains the same regardless of network attachment is the MAC Address.
Autonomous System Number (ASN)
- An ASN is 32 bits in length, used for routing and IP address allocation.
Network Management
- The IANA (Internet Assigned Numbers Authority) regulates IP address allocation and ASN allocation.
- RFC stands for Request For Comments, which are documents for discussing internet protocols.
Miscellaneous
- The ARP response informs broadcasting nodes of the MAC address necessary for the destination hardware address.
- Entries in an ARP table expire shortly to accommodate network changes.
- Class E IP addresses are generally reserved for testing purposes.
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Description
Test your knowledge on the network layer concepts from the Google IT Support Certificate. This quiz covers essential terms and principles related to octets, IP addresses, and QoS services. Perfect for learners aiming to master networking fundamentals.