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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 translates a MAC address into an IP address.
Definition of Protocol
Reverse Address Resolution Protocol (RARP )
Challenge Handshake Authentication Protocol (CHAP)
OSI Layer 4: Transport Layer
2. Wireless LAN standard that operates in a 2.4Ghz range - 11Mbps - DSSS
Asynchronous Transfer Mode (ATM)
Layers in the TCP/IP Model
802.11b
Stateful Firewall
3. This dedicated connection provides 45Mbps of bandwidth over 28 T1 lines and 672 time divided channels.
Coaxial Cables
T3
Blue Boxing
Shared Key Authentication (SKA)
4. Transmits high speed bandwidth over phone lines. Provides data rates up to 52 Mpbs using line of 1000 feet or less. Must be within 2.5 miles of a central office.
Reverse Address Resolution Protocol (RARP )
TCP
Noise
Digital Subscriber Line (DSL)
5. 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.
OSI Layer 2: Data Link Layer
Circuit Level Proxy Firewall
Password Authentication Protocol (PAP)
Synchronous Optical Networks (SONETS)
6. The well known values range from 0-1023. FTP runs on 20 and 21 - SMTP runs on 25 - TFTP runs on 69 - DNS runs on 53 - HTTP runs on 80 - HTTPS runs on 443 - SNMP runs on 161.
Port Numbers
SPIM
Bastion Host
Virtual Private Network (VPN)
7. Problems: If one station experiences a problem - it can negatively affect surrounding computers on the same cable.
Bluejacking
Bus Topology
IPSec
10baseT
8. Strengths of a type of firewall: application independence - high performance - and scalability. Weaknesses include low security - no protection above the network layer.
Permanent Virtual Circuit (PVC)
Point-To-Point Tunneling Protocol (PPTP)
Shared Key Authentication (SKA)
Packet Filtering Firewall
9. Type of cable that is more expensive than UTP and STP - more resistant to EMI - can carry baseband and board band technologies.
Isochronous Communication Processes
Kernel Proxy Firewall
Spread Spectrum
Coaxial Cables
10. 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.
Layer 2 Tunneling Protocol (L2TP)
Circuit Switching
Wireless Application Protocol (WAP)
Committed Information Rate (CIR)
11. 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.
Dedicated Links
Half-Duplex
Repeaters
Channel Service Unit/Data Service Unit (CSU/DSU)
12. 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.
Bluejacking
Distributed Environment Challenge
Packet Filtering Firewall
SOCKS Firewall
13. 4: Application - 3: Host-to-Host - 2: Internet - 1: Network Access - 3 -1 -1 -2 will map to the OSI model.
Direct Sequence Spread Spectrum (DSSS)
Layers in the TCP/IP Model
DOS attacks from flooding
802.15
14. Protocol that is best-effort - connectionless - and does not sent acknowledgements.
Point-To-Point (PPP)
UDP
Network Address Translator (NAT)
Trunk Lines
15. Wireless communication that splits total amount of bandwidth into smaller sub-channels. Send and receiver work in one of the channels for a period of time - and then move into a different channel. It uses a portion of the bandwidth - throughput of 1-
Twisted Pair Cables
802.11b
Definition of Protocol
Frequency Hopping Spread Spectrum (FHSS)
16. Type of firewall that is a proxy-based firewall solution. It is circuit-based and does not provide any application-based proxies.
Integrated Services Digital Network (ISDN)
Asynchronous Transfer Mode (ATM)
SOCKS Firewall
Wide Area Network (WAN)
17. Used when companies do not want systems to know internal hosts IP addresses. Enables companies to use private - nonroutable IP addresses.
LLC (Logical Link Control - 802.2)
IGMP
Network Address Translator (NAT)
Ring Topology
18. Type of firewall that keeps track of each communication session. It must maintain a state table that contains data about each connection. 3rd generation firewall - runs at the network layer.
Proxy Firewall
Stateful Firewall
IPv6
Multistation Access Unit (MAU)
19. 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.
Loki Attack
Dynamic Packet Filtering
802.16
OSI Layer 1: Physical
20. Type of ethernet implementation that uses a thicker coaxial cable - which allows a longer cable length to be used.
Twisted Pair Cables
802.11b
ThickNet - aka 10base5.
Screened Sub-Net
21. Type of firewall that Inspects incoming/outgoing messages for malicious information. If approved - transfers an isolated copy from one network to another. 2nd generation firewall.
Proxy Firewall
Integrated Services Digital Network (ISDN)
Stateful Firewall
Ring Topology
22. Protocol that is reliable and connection-oriented - which means it ensures delivery through acknowledgements - sequencing - detection and correction.
TCP
Layers in the OSI Model
DOS attacks from flooding
Virtual Private Network (VPN)
23. OSI layer that formats data into a standardized format and deals with the syntax of data - not the meaning. Example formats are ASCII - GIF - JPG - MPEG.
SOCKS Firewall
UDP
T1
OSI Layer 6: Presentation
24. 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).
Plenum-rated Cables
T1
IPSec
Trunk Lines
25. An older protocol that was used by ISP's to encapsulate data to be sent over dial up connections
Bridge
Serial Line Internet Protocol (SLIP)
Open System Authentication (OSA)
Coaxial Cables
26. Type of ethernet implementation that uses a standard coaxial cable with a maximum cable length of 185 meters. 10Mbps.
Ethernet (802.3)
Multi-protocol Label Switching
Virtual Private Network (VPN)
ThinNet - aka 10base2
27. Malware attack that sends commands inside of an ICMP packet.
Loki Attack
Trunk Lines
Plenum-rated Cables
Noise
28. Standard for transmitting data across the Internet. One is reliable and connection oriented. The other is unreliable and connectionless.
Plenum-rated Cables
Proxy Firewall
TCP/IP. TCP is reliable and connection oriented - IP is unreliable and connectionless.
Direct Sequence Spread Spectrum (DSSS)
29. 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 1: Physical
Password Authentication Protocol (PAP)
OSI Layer 3: Network Layer
OSI Layer 4: Transport Layer
30. Works like a private line for a customer with an agreed upon bandwidth. Path is programmed into the WAN devices.
Network Address Translator (NAT)
Permanent Virtual Circuit (PVC)
Spam over Internet Telephony (SPIT)
Pulse Code Modulation (PCM)
31. Type of firewall that can be compromised if the OS does not have packet forwarding or routing turned off.
Dual-Homed Firewall
Metropolitan Area Network (MAN)
Point-To-Point (PPP)
Simplex: One direction.
32. Faster because processing is done in the kernel. One network stack is created for each packet. 5th generation firewall - runs at the application layer.
DNS (Domain Name System)
Open Relay
Kernel Proxy Firewall
Packet Switching
33. 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.
Trunk Lines
CBC-MAC Protocol (CCMP)
ICMP (Internet Control Message Protocol)
Asynchronous Transfer Mode (ATM)
34. Type of wireless security standard that uses AES in CBC mode.
Ethernet (802.3)
CBC-MAC Protocol (CCMP)
Integrated Services Digital Network (ISDN)
Screened Host Firewall
35. 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.
Asynchronous Transfer Mode (ATM)
Circuit Level Proxy Firewall
Proxy Firewall Strengths
Application Proxy Firewall
36. Altering an ARP table so an IP address is mapped to a different MAC address. Results in traffic being routed to an attacker's computer.
ARP Poisoning
Source Routing
Commonly used in logical bus - Ethernet - token ring.
Isochronous Communication Processes
37. OSI layer that provides physical connections for transmission and performs the electrical encoding of data. This layer transforms bits to electrical signals. Protocols at this level HSSI (High Speed Serial Interface) - X.21 - EIA/TIA 232 and 449.
Synchronous Optical Networks (SONETS)
OSI Layer 1: Physical
Committed Information Rate (CIR)
Wide Area Network (WAN)
38. Wireless communication that distributes individual signals across the allocated frequencies.
Temporal Key Integrity Protocol (TKIP)
Iterated Association
Star Topology
Spread Spectrum
39. VPN protocol that can run in other networks (frame relay - X.25 - ATM). Does not provide encryption - lacks the security to be called a true "VPN" solution.
Layer 2 Tunneling Protocol (L2TP)
Fiber-optic Cables
Permanent Virtual Circuit (PVC)
Commonly used in Internet.
40. A Temporary circuit set up for a single connection. Set up and torn down as they are needed.
Switched Virtual Circuit (SVC)
802.15
Ring Topology
Cable Modem
41. Strengths of a type of Stateful Firewall: High security - better performance than an application firewall. Weaknesses include more complex - ___________ - if rebooted all information is lost.
FDDI-2
Attenuation
Challenge Handshake Authentication Protocol (CHAP)
DOS attacks from flooding
42. Protocol that increases address size from 32 bits to 128 bits
UDP
IPv6
802.11a
Dynamic Packet Filtering
43. Protocol where all computers compete for the shard network cable - listen to learn when they can transmit data - susceptible to data collisions. Used by Ethernet.
Multilevel Switching
Plenum-rated Cables
Carrier sense multiple access with collision detection (CSMA/CD)
Half-Duplex
44. In the OSI layer 5 - these are the types of what?
Simplex: One direction.
Tree Topology
10baseT
802.15
45. Type of cabling problem where data is corrupted going from end to end due to surrounding devices.
Noise
Fiber-optic Cables
Carrier sense multiple access with collision detection (CSMA/CD)
Asynchronous Communication
46. OSI layer that prepares data for the network medium by framing it into LAN/WAN frames. Defines how the physical layer transmits the network packets. Protocols at this layer ARP (Address Resolution Protocol) - RARP (Reverse Address Resolution Protocol
Direct Sequence Spread Spectrum (DSSS)
802.16
OSI Layer 4: Transport Layer
OSI Layer 2: Data Link Layer
47. 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).
Switched Virtual Circuit (SVC)
IGMP
Layers in the TCP/IP Model
Multilevel Switching
48. Protocol that addresses vulnerabilities found in PAP. Uses challenge/response mechanism to authenticate the user instead of sending password.
Subnetting
Challenge Handshake Authentication Protocol (CHAP)
Router
802.11a
49. Premium service offered by service providers in frame relay networks that guarantees a company a specified amount of bandwidth.
Committed Information Rate (CIR)
Multistation Access Unit (MAU)
SOCKS Firewall
LLC (Logical Link Control - 802.2)
50. Created because it was clear that available IP addresses were running out. Provides flexibility to increase or decrease the IP classes sizes as necessary.
Classless inter-domain routing (CIDR)
Committed Information Rate (CIR)
Screened Host Firewall
OSI Layer 3: Network Layer