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. Protocol based on the SDLC protocol - except it is an open protocol - supports full-duplex connections - and provides a higher throughput. It also provides polling - which enables secondary units to communicate with primary units.
Bridge
High Level Data Link Control (HLDC)
Blue Boxing
ICMP (Internet Control Message Protocol)
2. 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.
Direct Sequence Spread Spectrum (DSSS)
Trunk Lines
Repeaters
Bastion Host
3. 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.
Committed Information Rate (CIR)
Attenuation
Cable Modem
Switched Virtual Circuit (SVC)
4. 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.
OSI Layer 1: Physical
TCP
ARP (Address Resolution Protocol)
Mesh Topology
5. OSI layer that provides routing - addressing - and fragmentation of packets. This layer can determine alternative routes to avoid network congestion. Protocols that use this layer are IP - ICMP - RIP - OSPF (Open Shortest Path First) - BGP (Border Ga
IPSec
OSI Layer 3: Network Layer
Dual-Homed Firewall
Wireless Application Protocol (WAP)
6. Application layer request/response protocol widely used for VoIP communication sessions. Transported by UDP - makes use of TCP - and is vulnerable to sniffing attacks.
Packet Filtering Firewall
Bridge
Session Initiation Protocol (SIP)
802.11a
7. 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.
Switch
Screened Host Firewall
Source Routing
OSI Layer 6: Presentation
8. Both directions - both applications can send information at a time. Session Layer Communication Modes
Classless inter-domain routing (CIDR)
VLAN
Bastion Host
Full-Duplex
9. 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
DNS (Domain Name System)
VLAN
Multi-protocol Label Switching
10. 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.
Ethernet (802.3)
Fiber Distributed Data Interface (FDDI)
T3
Commonly used in FDDI.
11. Type of wireless security standard that uses AES in CBC mode.
IPv6
Spam over Internet Telephony (SPIT)
CBC-MAC Protocol (CCMP)
Frequency Hopping Spread Spectrum (FHSS)
12. 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).
T1
Spread Spectrum
Twisted Pair Cables
OSI Layer 3: Network Layer
13. 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-
Frequency Hopping Spread Spectrum (FHSS)
IPSec
Wired Equivalent Privacy (WEP)
ARP (Address Resolution Protocol)
14. 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.
OSI Data encapsulation
Wireless Application Protocol (WAP)
Twisted Pair Cables
IPSec
15. 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.
Virtual Private Network (VPN)
Circuit Switching
Commonly used in logical bus - Ethernet - token ring.
Loki Attack
16. As they travel down the OSI model on the source computer - each layer adds its own information so the corresponding layer on the destination machine knows how to process the data.
X.25
802.15
Synchronous Optical Networks (SONETS)
OSI Data encapsulation
17. Type of network layout that is a large geographical region connecting more that one LAN.
Switched Virtual Circuit (SVC)
Challenge Handshake Authentication Protocol (CHAP)
Wide Area Network (WAN)
802.11i
18. Type of cabling problem signals from one wire crossing over to another wire.
Dual-Homed Firewall
Digital Subscriber Line (DSL)
Ring Topology
Crosstalk
19. Type of ethernet implementation that uses twisted-pair copper wiring and transmits at 100Mbps.
Bastion Host
Crosstalk
Permanent Virtual Circuit (PVC)
10baseT
20. The process of simulating a 2600Hz frequency tone - which allowed attackers to gain free long distance phone service.
802.16
Blue Boxing
LLC (Logical Link Control - 802.2)
ARP (Address Resolution Protocol)
21. 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.
Remote Access Servers
IPv6
Stateful Firewall
Point-To-Point Tunneling Protocol (PPTP)
22. Type of topology where all computers are connected by a unidirectional transmission link - and the cable is in a closed loop.
Synchronous Communication
Temporal Key Integrity Protocol (TKIP)
Commonly used in FDDI.
Layers in the TCP/IP Model
23. Spam over IM
SPIM
UDP
ARP (Address Resolution Protocol)
Simplex: One direction.
24. 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
Frame Relay
SOCKS Firewall
Bastion Host
Private Branch Exchange (PBX)
25. Type of host that is locked down - hardened - system. Systems installed in the DMZ (firewalls - servers) should be installed on this type of host.
TCP
Bastion Host
OSI Layer 3: Network Layer
Frame Relay
26. Created because it was clear that available IP addresses were running out. Provides flexibility to increase or decrease the IP classes sizes as necessary.
Integrated Services Digital Network (ISDN)
VLAN
Classless inter-domain routing (CIDR)
TCP/IP. TCP is reliable and connection oriented - IP is unreliable and connectionless.
27. 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.
OSI Layer 6: Presentation
Layer 2 Tunneling Protocol (L2TP)
Full-Duplex
Integrated Services Digital Network (ISDN)
28. Type of firewall that can be compromised if the OS does not have packet forwarding or routing turned off.
Synchronous Optical Networks (SONETS)
OSI Layer 4: Transport Layer
Dual-Homed Firewall
Channel Service Unit/Data Service Unit (CSU/DSU)
29. Combines voice and data over the same IP network media and protocol. Reduces the cost of implementing and maintaining two different networks.
Plenum-rated Cables
VLAN
VoIP
Half-Duplex
30. Protocol that addresses vulnerabilities found in PAP. Uses challenge/response mechanism to authenticate the user instead of sending password.
Extensible Authentication Protocol (EAP)
Private Branch Exchange (PBX)
Challenge Handshake Authentication Protocol (CHAP)
X.25
31. 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.
VoIP
Point-To-Point Tunneling Protocol (PPTP)
Carrier sense multiple access with collision detection (CSMA/CD)
Loki Attack
32. Premium service offered by service providers in frame relay networks that guarantees a company a specified amount of bandwidth.
Committed Information Rate (CIR)
Commonly used in FDDI.
High Level Data Link Control (HLDC)
OSI Layer 3: Network Layer
33. Blue tooth vulnerability where an attacker sends messages to a receiver that is in discovery mode.
OSI Layer 5: Session Layer
Spread Spectrum
Crosstalk
Bluejacking
34. 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.
Metropolitan Area Network (MAN)
Channel Service Unit/Data Service Unit (CSU/DSU)
Plenum-rated Cables
Open Relay
35. Type of network that allows large IP ranges to be divided into smaller - logical - and easier to maintain network segments.
ThinNet - aka 10base2
Multi-protocol Label Switching
Distributed Environment Challenge
Subnetting
36. 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)
IPSec
Application Proxy Firewall
802.11
37. Standard that outlines wireless personal area network (WPAN) technologies.
Iterated Association
TCP/IP. TCP is reliable and connection oriented - IP is unreliable and connectionless.
Layer 2 Tunneling Protocol (L2TP)
802.15
38. Identifys a WLAN. Can be used to segment environments into different WLANS.
Channel Service Unit/Data Service Unit (CSU/DSU)
Service Set ID (SSID)
Packet Filtering Firewall
Synchronous Data Link Control (SDLC)
39. Problems: Requires more expense in cabling and extra effort to track down cable faults.
Mesh Topology
Stateful Firewall
Source Routing
OSI Layer 7: Application
40. Communication process that must deliver data with set time constraints. Applications are typically video related where audio and must match perfectly. VoIP is another example.
Kernel Proxy Firewall
Isochronous Communication Processes
Bridge
Synchronous Data Link Control (SDLC)
41. 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.
Multi-protocol Label Switching
Commonly used in Ethernet.
Half-Duplex
Bridge
42. 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.
Wireless Application Protocol (WAP)
Multistation Access Unit (MAU)
802.11b
Token Ring (802.5)
43. A simplified version of X.25 - without the error checking that was done on the network. It handles error checking at the end node - which helps improve speed dramatically.
Proxy Firewall Strengths
Frame Relay
802.11i
Bluejacking
44. 7: Application - 6: Presentation - 5: Session - 4: Transport - 3: Network - 2: Data Link - 1: Physical - Remember 'All People Seem To Need Data Processing'
Layers in the OSI Model
802.11
ThickNet - aka 10base5.
Stateful Firewall
45. Type of firewall that lies between the perimeter router and and LAN.
Trunk Lines
Multistation Access Unit (MAU)
Bus Topology
Screened Host Firewall
46. 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
CBC-MAC Protocol (CCMP)
Synchronous Data Link Control (SDLC)
Network Address Translator (NAT)
Password Authentication Protocol (PAP)
47. Protocol that is reliable and connection-oriented - which means it ensures delivery through acknowledgements - sequencing - detection and correction.
Subnetting
TCP
Ethernet (802.3)
ARP Poisoning
48. 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.
Dedicated Links
Attenuation
DOS attacks from flooding
Commonly used in FDDI.
49. Works like a private line for a customer with an agreed upon bandwidth. Path is programmed into the WAN devices.
Permanent Virtual Circuit (PVC)
SPIM
Switched Virtual Circuit (SVC)
Coaxial Cables
50. Protocol that resolves host names into IP addresses and has distributed databases all over the Internet to provide name resolution.
OSI Layer 3: Network Layer
Open Relay
DNS (Domain Name System)
Screened Host Firewall