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Test your basic knowledge |
CISSP Telecom And Network Security
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Subjects
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certifications
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it-skills
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cissp
Instructions:
Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Protocol that transfers data in fixed cells (53 bytes) - is a WAN technology - and transmits data at very high rates. Supports voice - data - and video applications.
Asynchronous Transfer Mode (ATM)
Ring Topology
DNS (Domain Name System)
802.15
2. This network technology determines which system will send data based on which one has the token.
Token Passing
Packet Filtering Firewall
TCP
LLC (Logical Link Control - 802.2)
3. Type of ethernet implementation that uses a standard coaxial cable with a maximum cable length of 185 meters. 10Mbps.
Port Numbers
ThinNet - aka 10base2
Multistation Access Unit (MAU)
IPv6
4. Type of cabling problem signals from one wire crossing over to another wire.
Layers in the TCP/IP Model
Crosstalk
Half-Duplex
Loki Attack
5. Dynamically builds ACL's to allow internal systems to communicate with external systems. Once the connection is finished - the ACL is removed from the list. 4th generation firewall.
Plenum-rated Cables
Twisted Pair Cables
Application Proxy Firewall
Dynamic Packet Filtering
6. Server that can be configured to hang up and call back remote users - but this can be compromise by enabling call forwarding.
Half-Duplex
SPIM
Remote Access Servers
Circuit Switching
7. Used when companies do not want systems to know internal hosts IP addresses. Enables companies to use private - nonroutable IP addresses.
Point-To-Point Tunneling Protocol (PPTP)
Network Address Translator (NAT)
Wide Area Network (WAN)
IPSec
8. Type of wireless security standard that uses AES in CBC mode.
CBC-MAC Protocol (CCMP)
IPv6
Reverse Address Resolution Protocol (RARP )
Loki Attack
9. Standard for transmitting data across the Internet. One is reliable and connection oriented. The other is unreliable and connectionless.
Wired Equivalent Privacy (WEP)
SOCKS Firewall
TCP/IP. TCP is reliable and connection oriented - IP is unreliable and connectionless.
OSI Layer 7: Application
10. VPN protocol that works at the network layer - handles multiple connections - provides secure authentication and encryption. Tunnel mode option (payload and header encrypted) - or transport mode (only payload is encrypted).
Repeaters
High Level Data Link Control (HLDC)
IPSec
Blue Boxing
11. Network where a virtual connection that acts like a dedicated link between two systems is set up. Traffic travels in a predictable and constant manner. Example - telephone.
802.16
Circuit Switching
Packet Filtering Firewall
X.25
12. Developed to replace the aging telephone and analog systems. BRI rate that uses two B channels (send/receive) - and one D channel (control information) - and PRI rate that uses up to 23 B channels. Supports voice - data - and video. Provides up to 1.
Twisted Pair Cables
Token Passing
Integrated Services Digital Network (ISDN)
OSI Data encapsulation
13. Type of topology that Uses linear single cable for all computers attached. All traffic travels full cable and can be viewed by all other computers.
Circuit Switching
Commonly used in Ethernet.
OSI Layer 1: Physical
Password Authentication Protocol (PAP)
14. Faster because processing is done in the kernel. One network stack is created for each packet. 5th generation firewall - runs at the application layer.
Definition of Protocol
Shared Key Authentication (SKA)
Kernel Proxy Firewall
Extensible Authentication Protocol (EAP)
15. Type of network device that is the simplest type of connectivity because it only repeats and amplifies electric signals between cable segments. Works at the physical layer.
Packet Switching
Bastion Host
Repeaters
Reverse Address Resolution Protocol (RARP )
16. Protocol that translates IP address into a MAC address (physical Ethernet address)
Layer 2 Tunneling Protocol (L2TP)
Dual-Homed Firewall
ARP (Address Resolution Protocol)
LLC (Logical Link Control - 802.2)
17. Type of cable that carries data as light waves - expensive - can transmit data at high speeds - difficult to tap into - and is resistant to EMI. Most secure cabling option - but vulnerable to dispersion.
Fiber-optic Cables
Virtual Private Network (VPN)
Proxy Firewall
10baseT
18. Wireless LAN standard. Variations include 802.11a - b - f - g - and i. Commonly accepts are 802.11b and g.
Multi-protocol Label Switching
OSI Layer 3: Network Layer
ARP Poisoning
802.11
19. Type of network device that divides networks into more controllable segments to ensure more efficient use of bandwidth. Works at the data link layer and understands MAC addresses - not IP addresses.
Carrier sense multiple access with collision detection (CSMA/CD)
Temporal Key Integrity Protocol (TKIP)
Bridge
Point-To-Point Tunneling Protocol (PPTP)
20. Type of cabling problem where data is corrupted going from end to end due to surrounding devices.
IPSec
OSI Layer 3: Network Layer
Blue Boxing
Noise
21. This dedicated connection provides 45Mbps of bandwidth over 28 T1 lines and 672 time divided channels.
Ring Topology
T3
Carrier sense multiple access with collision detection (CSMA/CD)
Iterated Association
22. This is a standard for fiber-optic cabling and uses self-healing network rings. This standard describes the interfaces that can be used over fiber lines and the signaling that can be employed. Works at the physical layer of the OSI model.
Synchronous Optical Networks (SONETS)
Challenge Handshake Authentication Protocol (CHAP)
Ethernet (802.3)
UDP
23. Problems: Requires more expense in cabling and extra effort to track down cable faults.
Pulse Code Modulation (PCM)
Iterated Association
Mesh Topology
Definition of Protocol
24. Protocol that increases address size from 32 bits to 128 bits
Open System Authentication (OSA)
IPv6
Synchronous Optical Networks (SONETS)
Tree Topology
25. Layer 3 - layer 4 - and other layer switches have more enhanced functionality than layer 2 switches. Combines switching and routing technologies - packet inspection - traffic prioritization - and quality of service (QoS).
Classless inter-domain routing (CIDR)
Challenge Handshake Authentication Protocol (CHAP)
Multilevel Switching
OSI Layer 7: Application
26. The process of simulating a 2600Hz frequency tone - which allowed attackers to gain free long distance phone service.
Blue Boxing
Synchronous Data Link Control (SDLC)
Attenuation
Layer 2 Tunneling Protocol (L2TP)
27. Type of firewall that uses a proxy for each service and can understand and make decisions on the protocols used and the commands within those protocols - runs at the application layer.
Proxy Firewall
Packet Switching
OSI Layer 3: Network Layer
Application Proxy Firewall
28. Most commonly used LAN implementation today. Considered a "chatty" protocol because it allows all systems to hear each other's broadcasts. Has many collisions because all systems share the same medium. Can operate at 10 to 1000 Mbps.
Packet Switching
Dynamic Packet Filtering
Spam over Internet Telephony (SPIT)
Ethernet (802.3)
29. In a token ring network - each computer is connected to this - which acts as a central hub.
Multistation Access Unit (MAU)
IGMP
Switched Virtual Circuit (SVC)
Committed Information Rate (CIR)
30. A WAN protocol that works at the data link layer and performs packet switching. Economical choice because the fee is based on bandwidth usage rather than a dedicated pipeline.
Synchronous Communication
Frame Relay
Layers in the TCP/IP Model
Port Numbers
31. Created because it was clear that available IP addresses were running out. Provides flexibility to increase or decrease the IP classes sizes as necessary.
Commonly used in Internet.
Classless inter-domain routing (CIDR)
Dynamic Packet Filtering
FDDI-2
32. Type of cable where STP and UTP (shielded and unshielded) cables are the most popular - cheapest - and easiest to work with. However - easiest to tap into - have cross talk issues - and are vulnerable to electromagnetic interference (EMI).
Twisted Pair Cables
Pulse Code Modulation (PCM)
Wired Equivalent Privacy (WEP)
Trunk Lines
33. Type of firewall that looks at header information to make decisions on whether a packet is deemed acceptable. This type does not look as deep within the packet as an application level proxy - runs at the session layer.
Plenum-rated Cables
Circuit Level Proxy Firewall
Distributed Environment Challenge
Application Proxy vs. Circuit Level
34. OSI layer that provides end to end transmission between computer systems. Protocols that use this layer are TCP (Transmission Control Protocol) - UDP (User Datagram Protocol) - SPX (Sequenced Packet Exchange) - and SSL.
OSI Layer 4: Transport Layer
Application Proxy vs. Circuit Level
Serial Line Internet Protocol (SLIP)
Commonly used in FDDI.
35. The original technique to digitized voice with 8 bits of sampling 8 -000 times per second - which yields 64 Kbps for one voice channel.
Pulse Code Modulation (PCM)
Layers in the TCP/IP Model
Point-To-Point (PPP)
TCP
36. Type of firewall that is also know as a screening router and is accomplished by ACL's (Lines of text called rules). Traffic can be filtered by address - ports - and protocol types. 1st generation firewall - runs at the network layer.
VLAN
Port Numbers
Packet Filtering Firewall
Bridge
37. Type of topology where computers all are connected to each other - which provides redundancy.
Commonly used in Internet.
ThinNet - aka 10base2
Simplex: One direction.
Circuit Level Proxy Firewall
38. Standard that outlines wireless personal area network (WPAN) technologies.
Digital Subscriber Line (DSL)
Dedicated Links
802.15
Mesh Topology
39. If the packet header information is used to determine destinations rather than the routes configured into the router. Packets with this information should be dropped.
ThickNet - aka 10base5.
Switch
Source Routing
Packet Filtering Firewall
40. Security wireless standard that rotates encryption keys - stronger IV values - MAC codes for packet integrity. Works in combination with WEP.
Blue Boxing
Ring Topology
Temporal Key Integrity Protocol (TKIP)
VLAN
41. VPN protocol that works at the data link layer - can only run in IP networks - and provides encryption and encapsulation. This is Microsoft's VPN solution.
Channel Service Unit/Data Service Unit (CSU/DSU)
Ethernet (802.3)
Point-To-Point Tunneling Protocol (PPTP)
Screened Host Firewall
42. Strengths of a type of firewall: Better security than packet filtering. Looks at all info in the packet - up to the application layer. Breaks the connection between trusted and untrusted systems. Weaknesses include limited number of applications supp
Committed Information Rate (CIR)
802.11b
Packet Filtering Firewall
Proxy Firewall Strengths
43. Type of network device that allows different network segments and/or systems to communicate. When communication takes place - a dedicated connection is set up - so collision and broadcast data is not available to other devices. Combined repeater (hub
Source Routing
Bus Topology
Switch
IGMP
44. Malware attack that sends commands inside of an ICMP packet.
Serial Line Internet Protocol (SLIP)
Commonly used in Ethernet.
Loki Attack
Metropolitan Area Network (MAN)
45. Most expensive type of WAN connection because the fee is based on distance between the two points rather than the amount of bandwidth used. Examples - T1 and T3.
Star Topology
Trunk Lines
Dedicated Links
Private Branch Exchange (PBX)
46. Type of topology that where all computers are connected to a central device (AKA hub) - which provides more resilience for the network.
Commonly used in logical bus - Ethernet - token ring.
Definition of Protocol
Crosstalk
Bridge
47. Type of wireless authentication where a shared WEP key is used to encrypt a nonce for authentication.
Direct Sequence Spread Spectrum (DSSS)
ARP (Address Resolution Protocol)
Shared Key Authentication (SKA)
DOS attacks from flooding
48. Premium service offered by service providers in frame relay networks that guarantees a company a specified amount of bandwidth.
Committed Information Rate (CIR)
Plenum-rated Cables
Challenge Handshake Authentication Protocol (CHAP)
Attenuation
49. Spam over IM
SPIM
Frequency Hopping Spread Spectrum (FHSS)
Router
Loki Attack
50. Provides high-speed access - up to 50 Mbps - to the Internet through existing cable coaxial and fiber lines. Major security concern is the fact that neighbors use the same coaxial network and can monitor each others traffic.
Wide Area Network (WAN)
Router
Cable Modem
DNS (Domain Name System)