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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. Standard for transmitting data across the Internet. One is reliable and connection oriented. The other is unreliable and connectionless.
Commonly used in Internet.
TCP/IP. TCP is reliable and connection oriented - IP is unreliable and connectionless.
Proxy Firewall Strengths
Committed Information Rate (CIR)
2. Protocol that works at the network layer and informs hosts - routers - and devices of network or computer problems. It is the major component of the ping utility.
Subnetting
ICMP (Internet Control Message Protocol)
Frame Relay
Spam over Internet Telephony (SPIT)
3. This dedicated connection provides 45Mbps of bandwidth over 28 T1 lines and 672 time divided channels.
T3
Synchronous Optical Networks (SONETS)
Twisted Pair Cables
Bridge
4. 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
Twisted Pair Cables
OSI Layer 7: Application
Switch
Definition of Protocol
5. 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.
Channel Service Unit/Data Service Unit (CSU/DSU)
Network Address Translator (NAT)
Repeaters
Asynchronous Communication
6. Type of cabling problem signals from one wire crossing over to another wire.
LLC (Logical Link Control - 802.2)
Spam over Internet Telephony (SPIT)
Crosstalk
Committed Information Rate (CIR)
7. 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.
ThinNet - aka 10base2
Session Initiation Protocol (SIP)
Permanent Virtual Circuit (PVC)
Frame Relay
8. 4: Application - 3: Host-to-Host - 2: Internet - 1: Network Access - 3 -1 -1 -2 will map to the OSI model.
Layers in the TCP/IP Model
Cable Modem
Half-Duplex
CBC-MAC Protocol (CCMP)
9. Type of network layout that separates and group computers logically.
IPv6
VLAN
Simplex: One direction.
Packet Filtering Firewall
10. Spam over IM
Ring Topology
Asynchronous Communication
Kernel Proxy Firewall
SPIM
11. Type of ethernet implementation that uses twisted-pair copper wiring and transmits at 100Mbps.
Committed Information Rate (CIR)
SPIM
10baseT
Frame Relay
12. Identifys a WLAN. Can be used to segment environments into different WLANS.
ARP (Address Resolution Protocol)
Mesh Topology
Service Set ID (SSID)
Multilevel Switching
13. Older LAN implementation that uses a token-passing technology. Can send a beacon frame to indicate that a certain computer is failing and its neighbors should reconfigure and work around the detected fault.
Loki Attack
Token Ring (802.5)
Direct Sequence Spread Spectrum (DSSS)
Bridge
14. This dedicated connection provides up to 1.544 Mbps bandwidth over 1 T1 and 24 time divided channels.
CBC-MAC Protocol (CCMP)
T1
Application Proxy vs. Circuit Level
Isochronous Communication Processes
15. Protocol that translates a MAC address into an IP address.
Layer 2 Tunneling Protocol (L2TP)
ThickNet - aka 10base5.
Reverse Address Resolution Protocol (RARP )
Trunk Lines
16. 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.
Point-To-Point Tunneling Protocol (PPTP)
T1
Dual-Homed Firewall
Switch
17. Premium service offered by service providers in frame relay networks that guarantees a company a specified amount of bandwidth.
TCP/IP. TCP is reliable and connection oriented - IP is unreliable and connectionless.
Twisted Pair Cables
X.25
Committed Information Rate (CIR)
18. 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.
Port Numbers
Layer 2 Tunneling Protocol (L2TP)
Switched Virtual Circuit (SVC)
OSI Layer 7: Application
19. Protocol based on the first version - however this version allows for fixed bandwidth to be allocated for specific applications.
Application Proxy vs. Circuit Level
Synchronous Data Link Control (SDLC)
Stateful Firewall
FDDI-2
20. 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.
TCP/IP. TCP is reliable and connection oriented - IP is unreliable and connectionless.
Fiber Distributed Data Interface (FDDI)
Port Numbers
OSI Layer 2: Data Link Layer
21. Malware attack that sends commands inside of an ICMP packet.
OSI Layer 5: Session Layer
Circuit Switching
Loki Attack
VoIP
22. 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.
Remote Access Servers
Bluejacking
Cable Modem
OSI Layer 4: Transport Layer
23. Wireless LAN standard that operates in a 2.4Ghz range - 11Mbps - DSSS
802.16
802.11b
DNS (Domain Name System)
OSI Layer 4: Transport Layer
24. 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.
Bridge
Iterated Association
TCP
802.16
25. Protocol that addresses vulnerabilities found in PAP. Uses challenge/response mechanism to authenticate the user instead of sending password.
802.11i
Wireless Application Protocol (WAP)
Challenge Handshake Authentication Protocol (CHAP)
802.15
26. The process of simulating a 2600Hz frequency tone - which allowed attackers to gain free long distance phone service.
Definition of Protocol
Blue Boxing
ARP Poisoning
ThickNet - aka 10base5.
27. 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.
DOS attacks from flooding
Stateful Firewall
Remote Access Servers
Direct Sequence Spread Spectrum (DSSS)
28. In a token ring network - each computer is connected to this - which acts as a central hub.
DOS attacks from flooding
Metropolitan Area Network (MAN)
Multistation Access Unit (MAU)
OSI Layer 6: Presentation
29. 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.
Private Branch Exchange (PBX)
802.11i
Stateful Firewall
Spam over Internet Telephony (SPIT)
30. 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).
DOS attacks from flooding
Twisted Pair Cables
Commonly used in FDDI.
Distributed Environment Challenge
31. 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.
Full-Duplex
Circuit Switching
FDDI-2
Packet Filtering Firewall
32. Security wireless standard that enables data transfers to be encrypted. Static encryption keys among clients - short 40 bit keys - RC4 encryption - ineffective use of 24 bit IV's - and no packet integrity.
Multi-protocol Label Switching
Carrier sense multiple access with collision detection (CSMA/CD)
Challenge Handshake Authentication Protocol (CHAP)
Wired Equivalent Privacy (WEP)
33. Type of wireless security standard that uses AES in CBC mode.
Service Set ID (SSID)
CBC-MAC Protocol (CCMP)
Temporal Key Integrity Protocol (TKIP)
UDP
34. Created because it was clear that available IP addresses were running out. Provides flexibility to increase or decrease the IP classes sizes as necessary.
ARP (Address Resolution Protocol)
Classless inter-domain routing (CIDR)
Remote Access Servers
Permanent Virtual Circuit (PVC)
35. A packet switching technology that is used by telecommunication services for data-only traffic. It is a subscriber based service that operates within the network and data link layers.
Bus Topology
X.25
Definition of Protocol
Asynchronous Communication
36. Proprietary protocol that enables secondary devices to communicate with primary stations or mainframes in an IBM architecture. Developed in the mid-70's for use in a systems network architecture (SNA) environment. First synchronous - link layer - bit
10baseT
Half-Duplex
Synchronous Data Link Control (SDLC)
Kernel Proxy Firewall
37. Standard that addresses wireless MAN technologies.
T1
802.16
Mesh Topology
Fiber-optic Cables
38. 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).
Screened Host Firewall
IPSec
Commonly used in Internet.
Isochronous Communication Processes
39. Application layer request/response protocol widely used for VoIP communication sessions. Transported by UDP - makes use of TCP - and is vulnerable to sniffing attacks.
Wide Area Network (WAN)
802.11a
OSI Layer 2: Data Link Layer
Session Initiation Protocol (SIP)
40. Strengths of a type of firewall: application independence - high performance - and scalability. Weaknesses include low security - no protection above the network layer.
Packet Filtering Firewall
Twisted Pair Cables
Classless inter-domain routing (CIDR)
Virtual Private Network (VPN)
41. 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.
Asynchronous Communication
OSI Layer 1: Physical
Digital Subscriber Line (DSL)
802.15
42. Type of LAN and MAN technology - usually used for backbones - that uses token-passing technology and has redundant rings in case the primary ring goes down.
Fiber Distributed Data Interface (FDDI)
TCP/IP. TCP is reliable and connection oriented - IP is unreliable and connectionless.
Switched Virtual Circuit (SVC)
Channel Service Unit/Data Service Unit (CSU/DSU)
43. Combines voice and data over the same IP network media and protocol. Reduces the cost of implementing and maintaining two different networks.
OSI Layer 3: Network Layer
Commonly used in FDDI.
VoIP
802.15
44. 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
Switch
OSI Layer 7: Application
CBC-MAC Protocol (CCMP)
45. 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
Dedicated Links
Extensible Authentication Protocol (EAP)
Point-To-Point (PPP)
46. Problems: Requires more expense in cabling and extra effort to track down cable faults.
Mesh Topology
LLC (Logical Link Control - 802.2)
Cable Modem
FDDI-2
47. 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.
Cable Modem
Spread Spectrum
Fiber-optic Cables
Full-Duplex
48. OSI layer that has services and protocols required by the user's applications for network functionality. Example protocols include HTTP - SMTP - FTP - Telnet.
OSI Layer 5: Session Layer
Point-To-Point (PPP)
OSI Layer 7: Application
Serial Line Internet Protocol (SLIP)
49. 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.
Commonly used in FDDI.
Multistation Access Unit (MAU)
Integrated Services Digital Network (ISDN)
Subnetting
50. Type of ethernet implementation that uses a thicker coaxial cable - which allows a longer cable length to be used.
ThickNet - aka 10base5.
Subnetting
Multilevel Switching
Screened Host Firewall