Telecommunications and Network Security Flashcards
What is a datagram?
a single unit of IP data
What is the purpose of the /etc/hosts.equiv file on a UNIX system?
It allows users on other systems to automatically log on to the configured system without re-authenticating.
What is a pleisiochronous transmission?
a transmission method that uses more than one timing source, sometimes running at different speeds
What is the maximum data transmission rate for an 802.11b wireless local area network (WLAN)?
11 Mbps
Which TCP/IP configuration information must a computer on a network have before it can communicate with the Internet?
an IP address, a default gateway, and a subnet mask
Which protocol is a combination of PPTP and L2F?
Layer 2 Tunneling Protocol (L2TP)
Which attack sends malformed packets to the intended victim?
a teardrop attack
What is a media access control (MAC) address?
a unique 48-bit number that is built into a NIC that connects to an Ethernet network
Which IP header protocol value indicates the IGMP protocol?
2
What is a security domain?
a set of resources that are managed by the same security policy and security group
What does the acronym UDP denote?
What does the acronym HTTP denote?
Hypertext Transfer Protocol
Which type of protocols are RIP v1, RIP v2, and IGRP
distance-vector protocols
At which OSI layer does HTTP operate?
Which function does diverse routing provide?
routes messages through split cable or through duplicate cable facilities.
In which versions of WAP does WAP Gap occur?
in versions of WAP prior to version 2.0
At which OSI layer does IGMP operate?
the network layer or Layer 3
Which frequency is used by 802.11b and 802.11g wireless access points?
2.4 ghz
Which metric is used by the Routing Information Protocol (RIP) Version 2 protocol to determine the network path?
hop count
What is the primary function of ICMP?
communication between network devices about the health of the network
What does the acronym CIDR denote?
Classless Interdomain Routing
What is the maximum data transmission rate for an 802.11a wireless local area network (WLAN)?
54 Mbps
What does encapsulation do?
It wraps data from one layer around a data packet from an adjoining layer.
Which type of protocol is OSPF?
OSPF is an interior gateway protocol that routes Internet Protocol (IP) packets solely within a single routing domain (autonomous system).
a link-state protocol
Internet Group Management Protocol
The Internet Group Management Protocol (IGMP) is a communications protocol used by hosts and adjacent routers on IP networks to establish multicast group memberships. IGMP is an integral part of IP multicast
