Chapter 3
What TCP header field allows the receiving node to determine whether a TCP segment is corrupted during transmission?
checksum
The _____of a MAC address is unique to each manufacturer.
OUI
Flow control, Sequencing, and Checksums are all properties of what layer 4 protocol?
TCP
What is the name for a network connection encrypted from end to end that creates a private connection to a remote network
VPN
_____ fiber optic cable is used for long distance data links and provides the highest throughput for Wide Area Networks.
Single-mode
In an IPv4 header, the _____ field indicates how many routers a packet may pass through on a network.
time to live
How many Bits in a MAC Address?
48 bits
Which of the following is an unreliable, connectionless protocol that relies on TCP to ensure messages reach the correct application on the receiving host.
IP (internet protocol)
What standard adds the Header and Trailer in Layer 2?
Ethernet
The minimum category of UTP cable required in order to support Gigabit Ethernet speeds is CAT _____.
Cat 5e
Management protocol for IPv4 that provides hosts with information about network problems and is used for network error reporting, and sends and receive echo requests.
ICMP
The protocol responsible for providing IP addresses to network hosts
DHCP
Protocol that works in conjunction with IPv4 to discover the MAC address of a host or node on the local network
ARP
What is different between TFTP and SFTP?
SFTP provides authentication and encryption where as TFTP provides neither.
Which part of a toner and probe kit emits an audible tone when it detects electrical activity on a wire pair?
Tone Locator
A host name-to-address resolution protocol
DNS
Which computers are the highest authorities in the Domain Name System hierarchy?
Root Server
List a name of a protocol used to encrypt TCP/IP transmissions.
TLS, SSL (layer 4+), IPSec (layer 3)
What type of Key Encryption uses two separate keys?
Public Key encryption
A ______ Cable reverses all of the wires and is used to connect a PC to the console port of a router.
Rollover Cable
What type of device does a computer turn to first when attempting to make contact with a host with a known IP address on another external network?
Default Gateway
A technique designed to conserve public IP address needed by a Network?
NAT (Network Address Translation)
The CIA Triad consists of what three things
Confidentiality, Integrity, Availability
What utility displays TCP/IP statistics and details about connections such as what port they use?
-Tracert
-Nmap
-Ipconfig
-Netstat
Netstat
The primary difference between multi-mode and single-mode optical fiber construction is the _____.
Diameter of the core