Cissp Set 2 (51 - 101) Telecommunications And Network Security

Front 1

What are the six basic security services to secure OSI communications?

Back 1

Authentication
Access Control
Data confidentiality
Data integrity
Non repudiation
Logging and Monitoring

Front 2

What layers of the OSI model does TCP/IP generally operate in?

Back 2

Transport and Network Layers

Front 3

In the TCP/IP model what is layer is considered comparable to the OSI transport layer?

Back 3

Host-to-host layer

Front 4

What does the host-to-host-layer in TCP/IP do?

Back 4

Provides reliable end-to-end communications, ensures error free delivery of the data, handles packet sequencing of the data and maintains the integrity of the data.

Front 5

What are the primary host-to-host layer protocols?

Back 5

TCP/UDP

Front 6

In the TCP/IP model what layer most closely corresponds to the OSI Network layer?

Back 6

Internet Layer

Front 7

What are the primary Internet layer protocols?

Back 7

IP, ARP, RARP, ICMP

Front 8

In the TCP/IP model the Network access layer most closely resembles what layer(s) of the OSI model?

Back 8

Data-link/physical

Front 9

Ports that are dynamically assigned by the source host are usually some number greater than...

Back 9

1023

Front 10

What is ARP used for?

Back 10

To resolve a MAC address from a given IP

Front 11

What is RARP?

Back 11

To resolve an IP address from a given MAC

Front 12

Which bytes on a MAC address identify the manufacturer?

Back 12

The first three bytes

Front 13

What is the primary function of ICMP?

Back 13

To send messages between network devices regarding the health of the network.

Front 14

What is BootP?

Back 14

A successor to ARP, it allows a diskless workstation to obtain an IP from a BootP server.

Front 15

What type of topology does Ethernet define?

Back 15

Bus

Front 16

What type of access method does Arcnet use?

Back 16

token passing

Front 17

What is an issue with the deployment of Arcnet networks?

Back 17

node addresses of each station must be set manually during installation.

Front 18

What physical topology is ARCnet?

Back 18

Star/coax cable

Front 19

In a token ring architecture what are all stations connected to?

Back 19

MSAU

Front 20

What Ohm rating of cable is used for digital signaling?

Back 20

50 Ohm

Front 21

What Ohm rating of cable is used for analog signaling and high speed digital signaling?

Back 21

75Ohm

Front 22

True or False:
Coax requires fixed spacing between connections

Back 22

True

Front 23

How many Mbps is Cat2 rated for?

Back 23

4Mbps

Front 24

What type of networks is Cat3 cable used in?

Back 24

10BaseT

Front 25

How many Mbps is Cat6 cable rating for?

Back 25

155 Mbps

Front 26

How many Mbps is Cat7 cable rating for?

Back 26

1Gbps

Front 27

What is the maximum effective length of fiber cabling?

Back 27

2 Km

Front 28

What are the five common LAN topologies?

Back 28

BUS, RING, STAR, TREE and MESH

Front 29

Where do dumb devices like repeaters and hubs operate at?

Back 29

Physical layer

Front 30

What protocol was developed to stop broadcast storms?

Back 30

Spanning Tree Protocol (802.1d)

Front 31

What are the five steps of transparent bridging?

Back 31

Learning
Flooding
filtering
forwarding
Aging

Front 32

What is distance vector routing?

Back 32

uses RIP to maintain a dynamic table of routing information .

Front 33

What does RIP base its routing decisions on?

Back 33

Number of hops

Front 34

What are link state routers?

Back 34

similar to distance vector routers but they use only first hand information and maintain copies of other routers tables.

Front 35

What is IGRP

Back 35

A Cisco routing protocol that uses composite metrics including bandwidth, delay, reliability, loading and transmission unit to determine the best routing path.

Front 36

What is a big difference between a router and a Layer 3 Switch?

Back 36

Layer 3 Switches have optimized hardware to pass data faster.

Front 37

Which is faster a router or a Layer 3 switch?

Back 37

Layer 3 switch

Front 38

What is the VLAN Trunking Protocol?

Back 38

a protocol that allows switches use to communicate among themselves about VLAN configuration

Front 39

What is a packet filtering firewall?

Back 39

Examines both the source and destination address of the incoming data packet and then blocks or forwards that packet based on ACLs

Front 40

At what layer of the OSI model do packet filtering firewalls operate?

Back 40

Network Layer

Front 41

What is a liability of packet filtering firewalls?

Back 41

It doesn't keep a history of the communications sessions.

Front 42

How does an application layer firewall operate?

Back 42

Like a proxy server it examines the packets and masks the source IPs from the internal network. It operates at Layer 7 and can intelligently filter protocols and application use on the network.

Front 43

What type of preliminary attack is an application firewall good at thwarting?

Back 43

network probing

Front 44

What type of firewall uses an inspection engine to maintian information in a dynamic state table and evaluate subsequent connections?

Back 44

Stateful inspection

Front 45

What is a dual homed host?

Back 45

A type of firewall that has two NICS but no screening router

Front 46

What is an important step to remember when configuring a dual homed host?

Back 46

To disable automatic bridging/routing

Front 47

What components make up a screened subnet firewall?

Back 47

Two screening routers and a bastion host or proxy

Front 48

What port does SOCK use?

Back 48

1080

Front 49

What does it mean to be SOCKSified?

Back 49

altering applications or protocols to use SOCK based network calls in lieu of standard network calls

Front 50

What are the three parts of SSH

Back 50

a Transport Layer protocol, User Authentication protocol, Connection protocol