SUBJECTS
|
BROWSE
|
CAREER CENTER
|
POPULAR
|
JOIN
|
LOGIN
Business Skills
|
Soft Skills
|
Basic Literacy
|
Certifications
About
|
Help
|
Privacy
|
Terms
|
Email
Search
Test your basic knowledge |
CISSP Telecom And Network Security
Start Test
Study First
Subjects
:
certifications
,
it-skills
,
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. 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
LLC (Logical Link Control - 802.2)
Channel Service Unit/Data Service Unit (CSU/DSU)
Star Topology
2. 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.
SOCKS Firewall
Packet Filtering Firewall
Repeaters
Integrated Services Digital Network (ISDN)
3. 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
T3
Circuit Level Proxy Firewall
Switch
4. This dedicated connection provides up to 1.544 Mbps bandwidth over 1 T1 and 24 time divided channels.
Switch
Bastion Host
Frame Relay
T1
5. 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.
T1
Circuit Switching
ARP (Address Resolution Protocol)
Direct Sequence Spread Spectrum (DSSS)
6. Protocol that is best-effort - connectionless - and does not sent acknowledgements.
Network Address Translator (NAT)
UDP
Fiber-optic Cables
802.11b
7. 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.
Carrier sense multiple access with collision detection (CSMA/CD)
Dedicated Links
High Level Data Link Control (HLDC)
Fiber Distributed Data Interface (FDDI)
8. Security wireless standard that rotates encryption keys - stronger IV values - MAC codes for packet integrity. Works in combination with WEP.
Spam over Internet Telephony (SPIT)
Digital Subscriber Line (DSL)
Temporal Key Integrity Protocol (TKIP)
Commonly used in logical bus - Ethernet - token ring.
9. Standard that outlines wireless personal area network (WPAN) technologies.
802.15
Layers in the TCP/IP Model
OSI Layer 6: Presentation
Kernel Proxy Firewall
10. Wireless standard that will improve security of wireless communication
10baseT
802.11i
TCP
Session Initiation Protocol (SIP)
11. Protocol for allowing multi-cast (one to many) communication
Fiber-optic Cables
Dual-Homed Firewall
Ethernet (802.3)
IGMP
12. Type of topology where computers all are connected to each other - which provides redundancy.
Commonly used in Internet.
Frame Relay
SPIM
Port Numbers
13. 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.
Distributed Environment Challenge
Multilevel Switching
Tree Topology
Screened Host Firewall
14. 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.
LLC (Logical Link Control - 802.2)
TCP/IP. TCP is reliable and connection oriented - IP is unreliable and connectionless.
Blue Boxing
Asynchronous Transfer Mode (ATM)
15. Type of topology where all computers are connected by a unidirectional transmission link - and the cable is in a closed loop.
Port Numbers
Commonly used in FDDI.
Simplex: One direction.
Proxy Firewall
16. Type of topology that uses a bus that does not have a one linear cable - but instead uses branches of cables. Commonly used in Ethernet.
UDP
Loki Attack
Tree Topology
Shared Key Authentication (SKA)
17. 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
Asynchronous Communication
Layers in the OSI Model
Switch
Challenge Handshake Authentication Protocol (CHAP)
18. Application layer request/response protocol widely used for VoIP communication sessions. Transported by UDP - makes use of TCP - and is vulnerable to sniffing attacks.
Session Initiation Protocol (SIP)
LLC (Logical Link Control - 802.2)
Frame Relay
CBC-MAC Protocol (CCMP)
19. 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.
Blue Boxing
Port Numbers
Ethernet (802.3)
Coaxial Cables
20. Problems: Requires more expense in cabling and extra effort to track down cable faults.
Proxy Firewall
Synchronous Communication
Mesh Topology
X.25
21. 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.
Ring Topology
VoIP
Cable Modem
Proxy Firewall Strengths
22. Wireless communication that distributes individual signals across the allocated frequencies.
Synchronous Optical Networks (SONETS)
Integrated Services Digital Network (ISDN)
Simplex: One direction.
Spread Spectrum
23. Communication devices that determine synchronization scheme before data transmission.
Synchronous Communication
Crosstalk
Simplex: One direction.
Fiber-optic Cables
24. 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
ThickNet - aka 10base5.
Synchronous Data Link Control (SDLC)
Token Ring (802.5)
Loki Attack
25. Malware attack that sends commands inside of an ICMP packet.
Loki Attack
Fiber Distributed Data Interface (FDDI)
IPv6
ICMP (Internet Control Message Protocol)
26. 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-
Blue Boxing
FDDI-2
Frequency Hopping Spread Spectrum (FHSS)
Multilevel Switching
27. Used when a LAN device needs to communicate with WAN devices over telephone lines. Ensures the necessary electrical signaling and format are used. Interfaces with Data Terminal Equipment (DTE) and Data Circuit-Terminal Equipment (DCE).
SPIM
Channel Service Unit/Data Service Unit (CSU/DSU)
Shared Key Authentication (SKA)
OSI Data encapsulation
28. Used when companies do not want systems to know internal hosts IP addresses. Enables companies to use private - nonroutable IP addresses.
Shared Key Authentication (SKA)
Synchronous Data Link Control (SDLC)
Network Address Translator (NAT)
Packet Switching
29. Problems: If one station experiences a problem - it can negatively affect surrounding computers on the same cable.
ThickNet - aka 10base5.
Bus Topology
Definition of Protocol
Twisted Pair Cables
30. 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.
Commonly used in logical bus - Ethernet - token ring.
Ethernet (802.3)
Noise
802.16
31. In the OSI layer 5 - these are the types of what?
Proxy Firewall
Router
FDDI-2
Simplex: One direction.
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).
Layers in the OSI Model
Layers in the TCP/IP Model
Twisted Pair Cables
ThinNet - aka 10base2
33. Works like a private line for a customer with an agreed upon bandwidth. Path is programmed into the WAN devices.
Commonly used in Ethernet.
Permanent Virtual Circuit (PVC)
802.11
Plenum-rated Cables
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.
Classless inter-domain routing (CIDR)
Crosstalk
UDP
Bus Topology
35. 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
Private Branch Exchange (PBX)
Ethernet (802.3)
Dedicated Links
ThinNet - aka 10base2
36. 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.
Source Routing
OSI Layer 7: Application
Plenum-rated Cables
X.25
37. 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.
SOCKS Firewall
Point-To-Point Tunneling Protocol (PPTP)
Router
Serial Line Internet Protocol (SLIP)
38. In a token ring network - each computer is connected to this - which acts as a central hub.
Blue Boxing
Wide Area Network (WAN)
Spread Spectrum
Multistation Access Unit (MAU)
39. Wireless LAN standard. Variations include 802.11a - b - f - g - and i. Commonly accepts are 802.11b and g.
FDDI-2
Tree Topology
802.11
TCP/IP. TCP is reliable and connection oriented - IP is unreliable and connectionless.
40. Communication devices that are not synchronized - meaning all devices can send data at will - send a sequence of bits framed with a start and stop bit.
Cable Modem
Stateful Firewall
Asynchronous Communication
Plenum-rated Cables
41. Both directions - only one application can send information at a time
Half-Duplex
ARP (Address Resolution Protocol)
Port Numbers
CBC-MAC Protocol (CCMP)
42. Premium service offered by service providers in frame relay networks that guarantees a company a specified amount of bandwidth.
ARP Poisoning
Dynamic Packet Filtering
Committed Information Rate (CIR)
Mesh Topology
43. Network segment name for a DMZ created by two physical firewalls.
Screened Sub-Net
OSI Layer 3: Network Layer
Temporal Key Integrity Protocol (TKIP)
Integrated Services Digital Network (ISDN)
44. 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.
Multistation Access Unit (MAU)
OSI Layer 1: Physical
DOS attacks from flooding
Switch
45. A Temporary circuit set up for a single connection. Set up and torn down as they are needed.
Screened Host Firewall
Kernel Proxy Firewall
Switched Virtual Circuit (SVC)
Full-Duplex
46. This dedicated connection provides 45Mbps of bandwidth over 28 T1 lines and 672 time divided channels.
TCP/IP. TCP is reliable and connection oriented - IP is unreliable and connectionless.
Fiber Distributed Data Interface (FDDI)
T3
Twisted Pair Cables
47. Type of cabling problem where loss of signal strength occurs as it travels due to cable exceeding its recommended length.
Screened Host Firewall
Token Ring (802.5)
Attenuation
Layers in the OSI Model
48. Protocol stack used instead of TCP/IP on wireless devices. The "gap" in this protocol involves translating its secure traffic to SSL or TLS - which is typically done by a 3rd party.
Layers in the TCP/IP Model
Layers in the OSI Model
IPv6
Wireless Application Protocol (WAP)
49. Type of topology that where all computers are connected to a central device (AKA hub) - which provides more resilience for the network.
Carrier sense multiple access with collision detection (CSMA/CD)
Synchronous Communication
Iterated Association
Commonly used in logical bus - Ethernet - token ring.
50. 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.
Wireless Application Protocol (WAP)
Remote Access Servers
Switched Virtual Circuit (SVC)
OSI Layer 6: Presentation