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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.
Kernel Proxy Firewall
Packet Filtering Firewall
TCP/IP. TCP is reliable and connection oriented - IP is unreliable and connectionless.
IPSec
2. 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.
Repeaters
Token Ring (802.5)
802.15
Multi-protocol Label Switching
3. Type of topology that Uses linear single cable for all computers attached. All traffic travels full cable and can be viewed by all other computers.
Extensible Authentication Protocol (EAP)
Wireless Application Protocol (WAP)
Commonly used in Ethernet.
Private Branch Exchange (PBX)
4. 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.
Packet Filtering Firewall
Simplex: One direction.
OSI Layer 1: Physical
Definition of Protocol
5. Application layer request/response protocol widely used for VoIP communication sessions. Transported by UDP - makes use of TCP - and is vulnerable to sniffing attacks.
ThickNet - aka 10base5.
Direct Sequence Spread Spectrum (DSSS)
Session Initiation Protocol (SIP)
Router
6. 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.
10baseT
Point-To-Point Tunneling Protocol (PPTP)
OSI Layer 4: Transport Layer
Circuit Level Proxy Firewall
7. 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).
Twisted Pair Cables
Full-Duplex
Challenge Handshake Authentication Protocol (CHAP)
ARP Poisoning
8. 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
Channel Service Unit/Data Service Unit (CSU/DSU)
Screened Sub-Net
UDP
9. Type of wireless security standard that uses AES in CBC mode.
UDP
CBC-MAC Protocol (CCMP)
Temporal Key Integrity Protocol (TKIP)
Ring Topology
10. 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.
Wired Equivalent Privacy (WEP)
Coaxial Cables
Session Initiation Protocol (SIP)
LLC (Logical Link Control - 802.2)
11. Transmits high speed bandwidth over phone lines. Provides data rates up to 52 Mpbs using line of 1000 feet or less. Must be within 2.5 miles of a central office.
Screened Sub-Net
Digital Subscriber Line (DSL)
Serial Line Internet Protocol (SLIP)
Spread Spectrum
12. Type of network that allows large IP ranges to be divided into smaller - logical - and easier to maintain network segments.
Subnetting
UDP
FDDI-2
OSI Layer 7: Application
13. The original technique to digitized voice with 8 bits of sampling 8 -000 times per second - which yields 64 Kbps for one voice channel.
Wireless Application Protocol (WAP)
Pulse Code Modulation (PCM)
10baseT
Tree Topology
14. 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.
Application Proxy vs. Circuit Level
Iterated Association
IPv6
Token Passing
15. Type of firewall that is a proxy-based firewall solution. It is circuit-based and does not provide any application-based proxies.
Kernel Proxy Firewall
Application Proxy vs. Circuit Level
Dynamic Packet Filtering
SOCKS Firewall
16. 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.
Commonly used in FDDI.
Definition of Protocol
802.11i
Open System Authentication (OSA)
17. 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
Wireless Application Protocol (WAP)
Point-To-Point Tunneling Protocol (PPTP)
Packet Filtering Firewall
18. Type of firewall that looks at header information to make decisions on whether a packet is deemed acceptable. This type does not look as deep within the packet as an application level proxy - runs at the session layer.
Temporal Key Integrity Protocol (TKIP)
Circuit Level Proxy Firewall
Kernel Proxy Firewall
Circuit Switching
19. 4: Application - 3: Host-to-Host - 2: Internet - 1: Network Access - 3 -1 -1 -2 will map to the OSI model.
Proxy Firewall Strengths
Layers in the TCP/IP Model
Synchronous Communication
Plenum-rated Cables
20. Wireless communication that distributes individual signals across the allocated frequencies.
Spread Spectrum
Circuit Level Proxy Firewall
ICMP (Internet Control Message Protocol)
Multilevel Switching
21. 7: Application - 6: Presentation - 5: Session - 4: Transport - 3: Network - 2: Data Link - 1: Physical - Remember 'All People Seem To Need Data Processing'
T3
Layers in the OSI Model
Virtual Private Network (VPN)
ARP Poisoning
22. 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
Synchronous Data Link Control (SDLC)
TCP/IP. TCP is reliable and connection oriented - IP is unreliable and connectionless.
Multilevel Switching
Commonly used in Internet.
23. Strengths of a type of firewall: application independence - high performance - and scalability. Weaknesses include low security - no protection above the network layer.
DNS (Domain Name System)
Dual-Homed Firewall
IPv6
Packet Filtering Firewall
24. 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.
Circuit Switching
Application Proxy Firewall
Open Relay
High Level Data Link Control (HLDC)
25. 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.
Layers in the OSI Model
Asynchronous Transfer Mode (ATM)
OSI Layer 6: Presentation
Token Passing
26. 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
X.25
Serial Line Internet Protocol (SLIP)
Application Proxy vs. Circuit Level
27. 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.
OSI Data encapsulation
Application Proxy vs. Circuit Level
Commonly used in logical bus - Ethernet - token ring.
Commonly used in Internet.
28. Type of host that is locked down - hardened - system. Systems installed in the DMZ (firewalls - servers) should be installed on this type of host.
T1
Trunk Lines
Carrier sense multiple access with collision detection (CSMA/CD)
Bastion Host
29. SMTP server that is configured for sending email from any source to and destination.
802.11a
Challenge Handshake Authentication Protocol (CHAP)
Plenum-rated Cables
Open Relay
30. Dynamically builds ACL's to allow internal systems to communicate with external systems. Once the connection is finished - the ACL is removed from the list. 4th generation firewall.
Frame Relay
IPSec
Dynamic Packet Filtering
OSI Layer 6: Presentation
31. 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
Frame Relay
Mesh Topology
Application Proxy vs. Circuit Level
32. Encapsulation protocol for telecommunication connections. Replaced SLIP and is ideal for connection different types of devices over serial lines.
Synchronous Data Link Control (SDLC)
Point-To-Point (PPP)
DOS attacks from flooding
Attenuation
33. Protocol based on the first version - however this version allows for fixed bandwidth to be allocated for specific applications.
FDDI-2
Point-To-Point (PPP)
OSI Layer 5: Session Layer
Multilevel Switching
34. 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.
Application Proxy vs. Circuit Level
Full-Duplex
Wireless Application Protocol (WAP)
High Level Data Link Control (HLDC)
35. Type of network layout that separates and group computers logically.
Serial Line Internet Protocol (SLIP)
Open Relay
Cable Modem
VLAN
36. OSI layer that has services and protocols required by the user's applications for network functionality. Example protocols include HTTP - SMTP - FTP - Telnet.
Attenuation
VLAN
OSI Layer 7: Application
Remote Access Servers
37. 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.
Service Set ID (SSID)
DOS attacks from flooding
IPSec
Circuit Level Proxy Firewall
38. 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.
Packet Switching
OSI Layer 1: Physical
Twisted Pair Cables
Spam over Internet Telephony (SPIT)
39. 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.
OSI Layer 3: Network Layer
Blue Boxing
Loki Attack
Fiber Distributed Data Interface (FDDI)
40. Type of cabling problem where loss of signal strength occurs as it travels due to cable exceeding its recommended length.
Attenuation
Repeaters
SOCKS Firewall
Cable Modem
41. Type of topology where all computers are connected by a unidirectional transmission link - and the cable is in a closed loop.
10baseT
Commonly used in FDDI.
Wired Equivalent Privacy (WEP)
DOS attacks from flooding
42. 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
VoIP
Virtual Private Network (VPN)
Proxy Firewall Strengths
Spread Spectrum
43. 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.
Loki Attack
OSI Layer 5: Session Layer
Router
SOCKS Firewall
44. 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.
802.11a
Trunk Lines
Bridge
VoIP
45. Protocol that is best-effort - connectionless - and does not sent acknowledgements.
Frame Relay
UDP
Cable Modem
Open System Authentication (OSA)
46. 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).
Iterated Association
Extensible Authentication Protocol (EAP)
IPSec
Digital Subscriber Line (DSL)
47. 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.
Point-To-Point Tunneling Protocol (PPTP)
Commonly used in FDDI.
Distributed Environment Challenge
UDP
48. Type of ethernet implementation that uses a thicker coaxial cable - which allows a longer cable length to be used.
ThickNet - aka 10base5.
Bluejacking
Virtual Private Network (VPN)
Ethernet (802.3)
49. Both directions - only one application can send information at a time
Isochronous Communication Processes
Commonly used in Ethernet.
DNS (Domain Name System)
Half-Duplex
50. 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
Metropolitan Area Network (MAN)
Frame Relay
Open System Authentication (OSA)
Multi-protocol Label Switching