Term
Address Resolution Protocol (ARP)
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Definition
An Internetwork-layer protocol used to resolve a host's
IP address to its MAC address. ARP uses a broadcast frame containing the target host's IP
address, and the host that's assigned the address responds with its MAC address. |
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Term
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Definition
A temporary storage location in an IP host's RAM that keeps recently learned IP
address/MAC address pairs so that the ARP protocol isn't necessary for each packet sent to
a host. |
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Term
| Automatic Private IP Addressing (APIPA) |
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Definition
A private range of IP addresses assigned to an
APIPA-enabled computer automatically when an IP address is requested via DHCP but no
DHCP server responds to the request. See also Dynamic Host Configuration Protocol
(DHCP). |
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Term
| Classless Interdomain Routing (CIDR) |
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Definition
A method of IP addressing in which the network and
host IDs are determined by a prefix number that specifies how many bits of the IP address
are network bits; the remaining bits are host bits. |
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Term
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Definition
A type of network communication in which data is transferred
without making a connection between communicating devices first, and the receiving station
gives no acknowledgement that the data was received. |
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Term
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Definition
An Application-layer protocol that resolves computer and
domain names to their IP addresses. DNS uses the UDP Transport-layer protocol. See also
User Datagram Protocol (UDP). |
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Term
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Definition
| A field in the Transport-Layer and Internetwork-layer that protects data integrity by providing a means for a receiving device to ensure that data hasn't been altered. |
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Term
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Definition
| The unit of information used by the UDP in the Transport layer. A datagram is passed up to the Application layer as data and passed down to the internetwork layer, where it becomes a packet. |
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Term
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Definition
| A database of primarily hostname and IP address pairs that are related by membership in an Internet or a Windows domain. |
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Term
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Definition
An Application-layer protocol that resolves computer and
domain names to their IP addresses. DNS uses the UDP Transport-layer protocol. See also
User Datagram Protocol (UDP). |
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Term
| Dynamic Host Configuration Protocol (DHCP) |
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Definition
An Application-layer protocol used to
configure a host's IP address settings dynamically. It uses the UDP Transport-layer protocol
because DHCP messages consist of a single packet and are used on the local LAN. |
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Term
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Definition
| A configuration option that excludes specified IP addresses from the DHCP IP address scope. |
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Term
| File Transfer Protocol (FTP) |
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Definition
| An application layer protocol used to transfer and manage files across a network; uses TCP ports 20 and 21. |
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Term
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Definition
An Application-layer protocol used to
configure a host's IP address settings dynamically. It uses the UDP Transport-layer protocol
because DHCP messages consist of a single packet and are used on the local LAN. |
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Term
| Fully qualified domain name (FQDN) |
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Definition
A name that includes the hostname, subdomain names
(if applicable), second-level domain name, and top-level domain name, separated by periods. |
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Term
| Internet Control Message Protocol (ICMP) |
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Definition
An Internetwork-layer protocol used to send
error and control messages between systems or devices. It's an encapsulated IP protocol,
meaning it's wrapped in an IP header. |
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Term
| Internet Message Access Protocol (IMAP) |
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Definition
An Internetwork-layer protocol used to send
error and control messages between systems or devices. It's an encapsulated IP protocol,
meaning it's wrapped in an IP header.
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Term
| Internet Message Access Protcol version 4 (IMAP4) |
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Definition
| An Application layer protocol used by an e-mail client to download messages from an e-mail server; operates on TCP port 143. IMAP4 also provides fault-tolerence features. It downloads only messages headers from the server initially, and then downloads the message body and attachments after the message is selected. |
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Term
| Internet Protocol Version 4 (IPv4) |
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Definition
A connectionless Internetwork-layer protocol that
provides source and destination addressing and routing for the TCP/IP protocol suite. Uses
32-bit dotted decimal addresses. |
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Term
| Internet Protocol Security (IPSec) |
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Definition
An extension to IP that provides security by using
authentication and encryption. It authenticates the identity of computers transmitting data
with a password or some other form of credentials, and it encrypts data so that if packets
are captured, the data will be unintelligible. |
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Term
| Internet Protocol Version 6 (IPv6) |
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Definition
A connectionless Internetwork-layer protocol that provides
source and destination addressing and routing for the TCP/IP protocol suite. Uses 128-bit
hexadecimal addresses and has built-in security and QoS features. |
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Term
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Definition
A 32-bit dotted-decimal address used by IP to determine the network a host
resides on and to identify hosts on the network at the Internetwork layer. |
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Term
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Definition
| A component of a DHCP server, it's a range of IP addresses the server leases to clients requesting an IP address. |
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Term
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Definition
A field in the Transport-layer protocol header that specifies the source and
destination Application-layer protocols that are used to request data and are the target of
the request, respectively. |
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Term
| Post Office Protocol version 3 (POP3) |
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Definition
An Application-layer protocol used by a client e-mail
application to download messages from an e-mail server; operates on TCP port 110. |
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Term
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Definition
Rules and procedures for communication and behavior. Computers must use a
common protocol and agree on the rules of communication. |
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Term
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Definition
A set of protocols working cooperatively to provide network communication.
Protocols are "stacked" in layers in which each layer performs a unique function required
for successful communication. Also called a protocol stack. |
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Term
| Remote Desktop Protocol (RDP) |
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Definition
| An Application layer protocol used to access a Windows computer remotely with the Windows GUI; uses TCP port 3389 |
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Term
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Definition
| A configuration option for an IP address scope that ties an IP address to a MAC address. When a client requests an IP from the DHCP server, if a clients MAC address matches an address specified by a reservation, the reserved IP address is leased to the client instead of getting it from the scope. |
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Term
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Definition
| Storage for recently resolved DNS data on a DNS client; used so that clients don't have to perform DNS lookups if host were resolved recently. |
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Term
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Definition
| The data contained in the DNS zone, such as host records, MX records and NS records. |
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Term
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Definition
| A secure Application layer protocol used to connect a device across a network via a command-line interface; uses TCP port 22. |
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Term
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Definition
The unit of information used by the Transport layer. A segment is passed up to the
Application layer as data and passed down to the Internetwork layer, where it becomes a
packet. |
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Term
| Server Message Block (SMB) |
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Definition
| An application layer protocol that Windows file and printer services use to share resources between Windows computers; uses TCP port 445. |
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Term
| Simple Mail Transfer Protocol (SMTP) |
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Definition
The standard protocol for sending e-mail over the
Internet. |
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Term
| Simple Network Management Protocol (SNMP) |
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Definition
| An Application layer protocol used to monitor and manage network devices and gather statistics about network traffic. It operates on UDP ports 161 and 162. |
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Term
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Definition
| An unsecure Application layer protocol used to connect a device across a network via a command-line interface; uses TCP port 23. |
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Term
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Definition
A series of three packets used between a client and server to create a TCP connection. After the three-way handshake has been completed successfully, a
connection is established between client and server applications, and data can be transferred. |
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Term
| Transmission Control Protocol (TCP) |
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Definition
| A connection-oriented Transport-layer protocol designed for reliable transfer of information in complex internetworks. |
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Term
Transmission Control Protocol/Internet Protocol (TCP/IP) |
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Definition
The most common protocol suite
in use, TCP/IP is the default protocol in contemporary OSs and the protocol of the Internet. |
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Term
| User Datagram Protocol (UDP) |
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Definition
A connectionless Transport-layer protocol designed for
efficient communication of generally small amounts of data. |
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Term
An IPv6 address is made up of how many bits?
A. 32
B. 48
C. 64
D. 128
E. 256 |
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Definition
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Term
Which Application layer protocol provides remote access to a Windows computer via the GUI.
a. Telnet
b. RDP
c. SSH
d. FTP |
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Definition
| b. RDP Remote desktop protocol |
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Term
If a protocol is routable, which TCP/IP layer does it operate at?
A. Network Access
B. Internetwork
C. Transport
D. Application |
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Definition
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Term
Which Application layer protocol is used to monitor and manage network devices, and what Transport layer protocol does it use.
a. SMTP, UDP
b. SNMP, TCP
c. SMTP, TCP
d. SMNP, UDP |
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Definition
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Term
Which TCP/IP model layer takes a large chunk of data from the Application layer and breaks it into smaller segments?
A. Network Access
B. Internetwork
C. Transport
D. Application
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Definition
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Term
Which of the following protocols resolves logical addresses to physical addresses?
A. DHCP
B. TCP
C. IP
D. DNS
E. ARP |
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Definition
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Term
Which of the following protocols provides connectionless service? (Choose all that apply.)
A. IP
B. UDP
C. TCP
D. SMTP |
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Definition
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Term
If you want to design an Application-layer protocol that provides fast, efficient communication and doesn't work with large amounts of data, what Transport-layer protocol would you design it to use? |
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Definition
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Term
Which of the following is the term for identifying packets used by TCP to establish a connection?
A. Port number indicators
B. Multiwindow agreement
C. Three-way handshake
D. Sequencing establishment |
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Definition
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Term
What element of a DHCP server uses the client MAC address to ensure that the client is leased the same address each time it requests an IP address?
a. IP address scope
b. Address exclusion
c. Reservation
d. ARP mapping |
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Definition
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Term
Which of the following is the first packet sent when a computer wants to lease an IP address?
a. DHCPAsk
b. DHCPDiscover
c. DHCPRequest
d. DHCPOffer |
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Definition
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Term
Which of the following IPv6 features is an enhancement to IPv4? (Choose all that apply.)
A. Larger address space
B. Works at the Internetwork and Transport layers
C. Built-in security
D. Connectionless communication |
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Definition
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Term
Which protocol can configure a computer's IP address and subnet mask automatically?
A. TCP
B. IP
C. ARP
D. DNS
E. DHCP |
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Definition
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Term
How many bits must be reallocated from host ID to network ID to create 16 subnets? |
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Definition
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Term
For the Class C network address 192.168.10.0, which of the following subnet masks provides 32 subnets?
A. 255.255.255.252
B. 255.255.255.248
C. 255.255.255.240
D. 255.255.255.224 |
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Definition
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Term
What type of packets are transmitted between DHCP client and server when a client is initially leasing an IP address?
a. Broadcast
b. Multicast
c. Unicast
d. Anycast |
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Definition
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Term
Which of the following accurately describes the .edu in the FQDN www.yc.edu?
a. Fully qualified domain name
b. Top level domain
c. Root domain
d. Second level domain |
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Definition
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Term
What's another name for a DNS client?
a. Alias
b. Reservation
c. DDNS
d. Resolver |
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Definition
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Term
What type of resource record is an alias for another record?
a. MX
b. AAAA
c. CNAME
d. PTR
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Definition
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Term
When a Windows computer is configured to use DHCP but no DHCP server is available, what type of address is configured automatically for it?
A. PAT
B. APIPA
C. NAT
D. Static |
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Definition
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Term
Where does a DNS server look when it can't resolve a query from it's zone records or cache?
a. Root hints
b. Alternate server
c. Top-level domain
d. BIND |
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Definition
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Term
What does the Transport layer use to identify source and destination Application-layer protocols?
a. Checksum
b. TCP address
c. Port number
d. Root hints |
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Definition
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Term
Which of the following Application-layer protocols typically uses the UDP Transport-layer protocol? (Choose all the apply.)
A. HTTP
B. DNS
C. DHCP
D. FTP |
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Definition
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Term
Which is the correct order of headers, from left to right, in a completed frame?
A. Frame, TCP, IP
B. UDP, frame, IP
C. TCP, IP, frame
D. Frame, IP, UDP |
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Definition
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Term
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Definition
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Term
Which of the following is a task performed by the Network access layer? (Choose all that apply.)
A. Verifies that incoming frames have the correct destination MAC address
B. Defines and verifies IP addresses
C. Transmits and receives bit signals
D. Resolves MAC addresses by using IP addresses
E. Delivers packets efficiently |
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Definition
A. Verifies that incoming frames have the correct destination MAC address
C. Transmits and receives bit signals |
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Term
What field of the IP header does the Tracert program use to get the IP address of routers in the path?
A. Version
B. TTL
C. Checksum
D. Protocol |
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Definition
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Term
Which of the following is NOT found in a connectionless Transport-layer protocol? (Choose all the apply.)
A. Three-way handshake
B. Port numbers
C. Checksum
D. Acknowledgements |
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Definition
A. Three-way handshake
D. Acknowledgements |
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