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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. Type of network that allows large IP ranges to be divided into smaller - logical - and easier to maintain network segments.
Subnetting
802.11i
T1
Direct Sequence Spread Spectrum (DSSS)
2. Both directions - only one application can send information at a time
VLAN
Password Authentication Protocol (PAP)
Half-Duplex
Frame Relay
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.
Bastion Host
Circuit Level Proxy Firewall
OSI Layer 4: Transport Layer
Dual-Homed Firewall
4. 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.
OSI Layer 1: Physical
Layer 2 Tunneling Protocol (L2TP)
Bridge
Packet Filtering Firewall
5. Type of host that is locked down - hardened - system. Systems installed in the DMZ (firewalls - servers) should be installed on this type of host.
FDDI-2
Bastion Host
Token Ring (802.5)
Challenge Handshake Authentication Protocol (CHAP)
6. OSI layer that has services and protocols required by the user's applications for network functionality. Example protocols include HTTP - SMTP - FTP - Telnet.
Channel Service Unit/Data Service Unit (CSU/DSU)
Commonly used in logical bus - Ethernet - token ring.
802.11a
OSI Layer 7: Application
7. Premium service offered by service providers in frame relay networks that guarantees a company a specified amount of bandwidth.
Committed Information Rate (CIR)
Layer 2 Tunneling Protocol (L2TP)
Dedicated Links
Circuit Switching
8. 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.
Wireless Application Protocol (WAP)
Proxy Firewall Strengths
Asynchronous Transfer Mode (ATM)
Commonly used in Ethernet.
9. 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.
Crosstalk
Open System Authentication (OSA)
Private Branch Exchange (PBX)
ICMP (Internet Control Message Protocol)
10. Type of wireless security standard that uses AES in CBC mode.
Mesh Topology
Commonly used in FDDI.
T3
CBC-MAC Protocol (CCMP)
11. Type of firewall that is a proxy-based firewall solution. It is circuit-based and does not provide any application-based proxies.
SOCKS Firewall
Twisted Pair Cables
Distributed Environment Challenge
SPIM
12. A technique that allows multiple layers of nesting. Example - IPSec tunnel can originate or terminate at a different IPSec site along the way.
OSI Layer 2: Data Link Layer
Point-To-Point Tunneling Protocol (PPTP)
SOCKS Firewall
Iterated Association
13. 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.
UDP
Dual-Homed Firewall
IPSec
Ethernet (802.3)
14. 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).
Extensible Authentication Protocol (EAP)
OSI Data encapsulation
Simplex: One direction.
Channel Service Unit/Data Service Unit (CSU/DSU)
15. 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.
Plenum-rated Cables
Application Proxy vs. Circuit Level
Frequency Hopping Spread Spectrum (FHSS)
OSI Layer 1: Physical
16. Type of switch that uses tags that are assigned to each destination network. The network compares the tag with its tag information base - appends the appropriate tag - and forwards to the next switch. This increases the transmission speed - allows la
Frequency Hopping Spread Spectrum (FHSS)
Bastion Host
802.11a
Multi-protocol Label Switching
17. An older protocol that was used by ISP's to encapsulate data to be sent over dial up connections
Source Routing
Blue Boxing
Wireless Application Protocol (WAP)
Serial Line Internet Protocol (SLIP)
18. 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.
VLAN
Digital Subscriber Line (DSL)
Cable Modem
Source Routing
19. 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.
Direct Sequence Spread Spectrum (DSSS)
Network Address Translator (NAT)
OSI Data encapsulation
Fiber Distributed Data Interface (FDDI)
20. Type of topology where computers all are connected to each other - which provides redundancy.
Password Authentication Protocol (PAP)
Coaxial Cables
Challenge Handshake Authentication Protocol (CHAP)
Commonly used in Internet.
21. The process of simulating a 2600Hz frequency tone - which allowed attackers to gain free long distance phone service.
Blue Boxing
Pulse Code Modulation (PCM)
TCP
Committed Information Rate (CIR)
22. 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
802.15
Synchronous Communication
Password Authentication Protocol (PAP)
23. 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.
SPIM
High Level Data Link Control (HLDC)
Circuit Level Proxy Firewall
CBC-MAC Protocol (CCMP)
24. Problems: If one station experiences a problem - it can negatively affect surrounding computers on the same ring.
Iterated Association
Bridge
Permanent Virtual Circuit (PVC)
Ring Topology
25. Type of ethernet implementation that uses a thicker coaxial cable - which allows a longer cable length to be used.
IPv6
Commonly used in FDDI.
Integrated Services Digital Network (ISDN)
ThickNet - aka 10base5.
26. 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.
Temporal Key Integrity Protocol (TKIP)
SPIM
Frame Relay
Multistation Access Unit (MAU)
27. 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
OSI Layer 3: Network Layer
Synchronous Optical Networks (SONETS)
UDP
Kernel Proxy Firewall
28. Type of wireless authentication where a shared WEP key is used to encrypt a nonce for authentication.
ARP (Address Resolution Protocol)
Shared Key Authentication (SKA)
Blue Boxing
802.11i
29. 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.
Ethernet (802.3)
Service Set ID (SSID)
Open System Authentication (OSA)
Extensible Authentication Protocol (EAP)
30. Standard for transmitting data across the Internet. One is reliable and connection oriented. The other is unreliable and connectionless.
Layer 2 Tunneling Protocol (L2TP)
802.11a
Shared Key Authentication (SKA)
TCP/IP. TCP is reliable and connection oriented - IP is unreliable and connectionless.
31. Problems: Requires more expense in cabling and extra effort to track down cable faults.
Crosstalk
Cable Modem
Mesh Topology
Isochronous Communication Processes
32. Encapsulation protocol for telecommunication connections. Replaced SLIP and is ideal for connection different types of devices over serial lines.
FDDI-2
High Level Data Link Control (HLDC)
Point-To-Point (PPP)
ThickNet - aka 10base5.
33. 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.
Virtual Private Network (VPN)
802.11a
Loki Attack
OSI Data encapsulation
34. Strengths of a type of firewall: Better security than packet filtering. Looks at all info in the packet - up to the application layer. Breaks the connection between trusted and untrusted systems. Weaknesses include limited number of applications supp
Classless inter-domain routing (CIDR)
Proxy Firewall Strengths
Circuit Level Proxy Firewall
TCP
35. OSI layer 2 Sub-layers. The first provides a standard interface for the network protocol being used. The second provides a standard interface for the physical layer protocol being used.
Asynchronous Transfer Mode (ATM)
LLC (Logical Link Control - 802.2)
Attenuation
Bastion Host
36. 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.
Isochronous Communication Processes
Circuit Switching
Application Proxy Firewall
ARP (Address Resolution Protocol)
37. Protocol that is reliable and connection-oriented - which means it ensures delivery through acknowledgements - sequencing - detection and correction.
Coaxial Cables
Token Passing
TCP
Switched Virtual Circuit (SVC)
38. 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.
CBC-MAC Protocol (CCMP)
Circuit Switching
Challenge Handshake Authentication Protocol (CHAP)
Point-To-Point Tunneling Protocol (PPTP)
39. Type of backbone network that joins together LAN to other LANs and WANs to LANs - etc. Typically known as Synchronous Optical Networks (SONETS) or FDDI rings.
Fiber Distributed Data Interface (FDDI)
LLC (Logical Link Control - 802.2)
DNS (Domain Name System)
Metropolitan Area Network (MAN)
40. 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).
IPSec
Ring Topology
Repeaters
OSI Layer 2: Data Link Layer
41. Problems: If one station experiences a problem - it can negatively affect surrounding computers on the same cable.
Bus Topology
ARP (Address Resolution Protocol)
Token Ring (802.5)
Screened Sub-Net
42. The original technique to digitized voice with 8 bits of sampling 8 -000 times per second - which yields 64 Kbps for one voice channel.
IPv6
Subnetting
Pulse Code Modulation (PCM)
Packet Switching
43. Works like a private line for a customer with an agreed upon bandwidth. Path is programmed into the WAN devices.
Blue Boxing
Ethernet (802.3)
Circuit Level Proxy Firewall
Permanent Virtual Circuit (PVC)
44. Type of firewall that lies between the perimeter router and and LAN.
Screened Host Firewall
Asynchronous Transfer Mode (ATM)
TCP
Commonly used in Internet.
45. 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.
Asynchronous Communication
Pulse Code Modulation (PCM)
Virtual Private Network (VPN)
Multi-protocol Label Switching
46. Spam over IM
Isochronous Communication Processes
SPIM
Open System Authentication (OSA)
Simplex: One direction.
47. Combines voice and data over the same IP network media and protocol. Reduces the cost of implementing and maintaining two different networks.
Multilevel Switching
VoIP
T1
Metropolitan Area Network (MAN)
48. 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
DNS (Domain Name System)
Stateful Firewall
OSI Layer 3: Network Layer
49. OSI layer that sets up - maintains - and breaks down the dialog (session) between two applications. Controls dialog organization and synchronization. Protocols that work at this layer are NFS (Network File System) - SQL - NetBIOS - RPC.
Spread Spectrum
ThinNet - aka 10base2
Proxy Firewall Strengths
OSI Layer 5: Session Layer
50. 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.
Wired Equivalent Privacy (WEP)
ThinNet - aka 10base2
Circuit Level Proxy Firewall
802.15