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CISSP Telecom And Network Security
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cissp
Instructions:
Answer 50 questions in 15 minutes.
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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. Type of wireless security standard that uses AES in CBC mode.
CBC-MAC Protocol (CCMP)
Carrier sense multiple access with collision detection (CSMA/CD)
Challenge Handshake Authentication Protocol (CHAP)
802.11
2. Uses tunneling protocols and encryption to provide a secure network connection between two network hosts. Private and secure connections can be made across an unsecured network. Example protocols are PPTP - L2TP - and IPSec.
Channel Service Unit/Data Service Unit (CSU/DSU)
Wireless Application Protocol (WAP)
Virtual Private Network (VPN)
10baseT
3. Server that can be configured to hang up and call back remote users - but this can be compromise by enabling call forwarding.
802.16
802.11
Remote Access Servers
OSI Layer 1: Physical
4. 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
Wide Area Network (WAN)
Mesh Topology
Port Numbers
OSI Layer 2: Data Link Layer
5. 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.
Source Routing
Permanent Virtual Circuit (PVC)
Stateful Firewall
Point-To-Point Tunneling Protocol (PPTP)
6. Type of ethernet implementation that uses a thicker coaxial cable - which allows a longer cable length to be used.
Spread Spectrum
ThickNet - aka 10base5.
Loki Attack
Mesh Topology
7. Type of network that allows large IP ranges to be divided into smaller - logical - and easier to maintain network segments.
Asynchronous Communication
LLC (Logical Link Control - 802.2)
Subnetting
Metropolitan Area Network (MAN)
8. Protocol that increases address size from 32 bits to 128 bits
Token Passing
IPv6
Multistation Access Unit (MAU)
Loki Attack
9. 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.
Temporal Key Integrity Protocol (TKIP)
Synchronous Data Link Control (SDLC)
Stateful Firewall
802.11b
10. Standard that outlines wireless personal area network (WPAN) technologies.
802.15
T3
Extensible Authentication Protocol (EAP)
10baseT
11. OSI layer that has services and protocols required by the user's applications for network functionality. Example protocols include HTTP - SMTP - FTP - Telnet.
Layers in the OSI Model
OSI Data encapsulation
OSI Layer 7: Application
OSI Layer 6: Presentation
12. Type of firewall that lies between the perimeter router and and LAN.
Screened Sub-Net
Screened Host Firewall
DNS (Domain Name System)
Point-To-Point (PPP)
13. 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.
Synchronous Data Link Control (SDLC)
Fiber Distributed Data Interface (FDDI)
VLAN
802.11b
14. Wireless communication that distributes individual signals across the allocated frequencies.
Dual-Homed Firewall
Network Address Translator (NAT)
Dedicated Links
Spread Spectrum
15. The original technique to digitized voice with 8 bits of sampling 8 -000 times per second - which yields 64 Kbps for one voice channel.
Circuit Switching
Serial Line Internet Protocol (SLIP)
Pulse Code Modulation (PCM)
OSI Layer 5: Session Layer
16. Set of rules that dictates how computer communicate over networks.
Noise
Packet Switching
Definition of Protocol
Fiber Distributed Data Interface (FDDI)
17. Device used within companies to provide multiple services to users throughout a building or facility. Example - dialing 9 to place outbound phone calls. Security concerns: default configurations and passwords - maintenance modems disabled - unused co
Wired Equivalent Privacy (WEP)
Open Relay
CBC-MAC Protocol (CCMP)
Private Branch Exchange (PBX)
18. Wireless standard that will improve security of wireless communication
Screened Sub-Net
Challenge Handshake Authentication Protocol (CHAP)
802.11i
Attenuation
19. Network cabling that is placed in these types of areas must meet a specific fire rating. These cables typically have a jacked cover made of fluoropolymers.
VLAN
Plenum-rated Cables
OSI Layer 5: Session Layer
Session Initiation Protocol (SIP)
20. Malware attack that sends commands inside of an ICMP packet.
Permanent Virtual Circuit (PVC)
Open System Authentication (OSA)
Loki Attack
Crosstalk
21. 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.
Point-To-Point Tunneling Protocol (PPTP)
Bastion Host
ARP Poisoning
Synchronous Data Link Control (SDLC)
22. Type of wireless authentication where the device does not need to provide a key for authentication. Usually - only the SSID is required and plaintext transmission occurs.
Frame Relay
Commonly used in logical bus - Ethernet - token ring.
Multilevel Switching
Open System Authentication (OSA)
23. 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.
X.25
Iterated Association
OSI Layer 7: Application
Virtual Private Network (VPN)
24. More complexity and drastically increases the difficultly of access control. Many different devices - services - and users make it difficult to know which entities to trust and to what degree.
Application Proxy Firewall
Distributed Environment Challenge
Source Routing
Bluejacking
25. Wireless communication that applies sub-bits to a message (chips) and the receiver uses the chips to re-assemble the message based on the chipping code. It uses all available bandwidth - high throughput of 11Mbps.
Bluejacking
Direct Sequence Spread Spectrum (DSSS)
Isochronous Communication Processes
Half-Duplex
26. Type of topology that where all computers are connected to a central device (AKA hub) - which provides more resilience for the network.
Distributed Environment Challenge
Commonly used in logical bus - Ethernet - token ring.
Iterated Association
ThickNet - aka 10base5.
27. Type of cabling problem where data is corrupted going from end to end due to surrounding devices.
OSI Layer 2: Data Link Layer
Temporal Key Integrity Protocol (TKIP)
Noise
Metropolitan Area Network (MAN)
28. 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.
Cable Modem
Blue Boxing
OSI Layer 6: Presentation
Mesh Topology
29. 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
802.11a
Source Routing
LLC (Logical Link Control - 802.2)
30. Standard for transmitting data across the Internet. One is reliable and connection oriented. The other is unreliable and connectionless.
Point-To-Point Tunneling Protocol (PPTP)
TCP/IP. TCP is reliable and connection oriented - IP is unreliable and connectionless.
Plenum-rated Cables
OSI Layer 4: Transport Layer
31. Combines voice and data over the same IP network media and protocol. Reduces the cost of implementing and maintaining two different networks.
Port Numbers
Bus Topology
VoIP
ThinNet - aka 10base2
32. Premium service offered by service providers in frame relay networks that guarantees a company a specified amount of bandwidth.
Open System Authentication (OSA)
ThinNet - aka 10base2
Committed Information Rate (CIR)
CBC-MAC Protocol (CCMP)
33. These are used to connect multiple switches for traffic of the same classification. Example - two voice switches at a local phone company's central office.
Dynamic Packet Filtering
Trunk Lines
Point-To-Point Tunneling Protocol (PPTP)
Dedicated Links
34. 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
Tree Topology
802.16
Synchronous Communication
35. Type of ethernet implementation that uses twisted-pair copper wiring and transmits at 100Mbps.
Pulse Code Modulation (PCM)
10baseT
Frame Relay
Packet Filtering Firewall
36. Protocol that is used by remote users to authenticate over PPP lines. Sends passwords over clear text. Vulnerable to MITM attacks.
Bluejacking
Password Authentication Protocol (PAP)
802.16
Ring Topology
37. Protocol for allowing multi-cast (one to many) communication
Twisted Pair Cables
Plenum-rated Cables
IGMP
OSI Data encapsulation
38. 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
Switch
Bluejacking
Session Initiation Protocol (SIP)
Direct Sequence Spread Spectrum (DSSS)
39. Network segment name for a DMZ created by two physical firewalls.
Metropolitan Area Network (MAN)
Screened Sub-Net
ARP Poisoning
Isochronous Communication Processes
40. Identifys a WLAN. Can be used to segment environments into different WLANS.
Service Set ID (SSID)
802.11b
Spread Spectrum
Serial Line Internet Protocol (SLIP)
41. 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.
UDP
OSI Layer 2: Data Link Layer
Token Passing
Port Numbers
42. Type of network device that links 2 or more network segments - where each segment can function as an independent network. Works at the network layer - works with IP addresses - and has more network knowledge than the other hardware.
OSI Layer 2: Data Link Layer
Proxy Firewall
Router
Crosstalk
43. Communication devices that determine synchronization scheme before data transmission.
Synchronous Communication
Token Passing
DOS attacks from flooding
Network Address Translator (NAT)
44. 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).
OSI Layer 3: Network Layer
IPSec
Commonly used in Internet.
802.11a
45. Protocol based on the first version - however this version allows for fixed bandwidth to be allocated for specific applications.
Blue Boxing
Screened Host Firewall
Dynamic Packet Filtering
FDDI-2
46. 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.
Bus Topology
Point-To-Point (PPP)
VoIP
Source Routing
47. Firewall that does not require a proxy for each service; does not provide detailed access control; but does provide for a wider range of protocols.
ARP (Address Resolution Protocol)
Channel Service Unit/Data Service Unit (CSU/DSU)
Integrated Services Digital Network (ISDN)
Application Proxy vs. Circuit Level
48. 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.
ICMP (Internet Control Message Protocol)
Synchronous Communication
Carrier sense multiple access with collision detection (CSMA/CD)
IPv6
49. Protocol that addresses vulnerabilities found in PAP. Uses challenge/response mechanism to authenticate the user instead of sending password.
DNS (Domain Name System)
Token Ring (802.5)
Definition of Protocol
Challenge Handshake Authentication Protocol (CHAP)
50. Both directions - only one application can send information at a time
DNS (Domain Name System)
SOCKS Firewall
Screened Sub-Net
Half-Duplex
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