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CISSP Telecom And Network Security
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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. 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
Star Topology
ThickNet - aka 10base5.
Reverse Address Resolution Protocol (RARP )
2. Wireless standard that will improve security of wireless communication
802.11i
Switch
Kernel Proxy Firewall
Packet Switching
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.
Commonly used in FDDI.
Full-Duplex
OSI Layer 4: Transport Layer
Pulse Code Modulation (PCM)
4. An older protocol that was used by ISP's to encapsulate data to be sent over dial up connections
Asynchronous Communication
10baseT
Serial Line Internet Protocol (SLIP)
Private Branch Exchange (PBX)
5. Wireless LAN standard that operates in a 2.4Ghz range - 11Mbps - DSSS
802.11b
X.25
Committed Information Rate (CIR)
802.11i
6. Both directions - only one application can send information at a time
Tree Topology
Point-To-Point (PPP)
Metropolitan Area Network (MAN)
Half-Duplex
7. Type of firewall that can be compromised if the OS does not have packet forwarding or routing turned off.
Dual-Homed Firewall
Shared Key Authentication (SKA)
UDP
Commonly used in FDDI.
8. Protocol that translates IP address into a MAC address (physical Ethernet address)
ICMP (Internet Control Message Protocol)
ARP (Address Resolution Protocol)
Synchronous Optical Networks (SONETS)
Layers in the TCP/IP Model
9. 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.
Multilevel Switching
Digital Subscriber Line (DSL)
Subnetting
Repeaters
10. Communication devices that determine synchronization scheme before data transmission.
Bus Topology
Classless inter-domain routing (CIDR)
Synchronous Communication
Committed Information Rate (CIR)
11. 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.
Session Initiation Protocol (SIP)
Twisted Pair Cables
Coaxial Cables
Commonly used in Ethernet.
12. 7: Application - 6: Presentation - 5: Session - 4: Transport - 3: Network - 2: Data Link - 1: Physical - Remember 'All People Seem To Need Data Processing'
Password Authentication Protocol (PAP)
Layers in the OSI Model
Synchronous Optical Networks (SONETS)
Switch
13. 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.
Dynamic Packet Filtering
Layers in the TCP/IP Model
Router
Isochronous Communication Processes
14. Type of cabling problem signals from one wire crossing over to another wire.
Synchronous Data Link Control (SDLC)
Subnetting
Open Relay
Crosstalk
15. Blue tooth vulnerability where an attacker sends messages to a receiver that is in discovery mode.
Bluejacking
Serial Line Internet Protocol (SLIP)
Session Initiation Protocol (SIP)
802.15
16. Problems: If one station experiences a problem - it can negatively affect surrounding computers on the same ring.
Ring Topology
Switch
Reverse Address Resolution Protocol (RARP )
Isochronous Communication Processes
17. Type of network that allows large IP ranges to be divided into smaller - logical - and easier to maintain network segments.
802.11
Subnetting
Mesh Topology
ARP Poisoning
18. 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.
Iterated Association
Challenge Handshake Authentication Protocol (CHAP)
Application Proxy Firewall
Commonly used in Internet.
19. Protocol for allowing multi-cast (one to many) communication
SOCKS Firewall
802.11b
Multistation Access Unit (MAU)
IGMP
20. Problems: If one station experiences a problem - it can negatively affect surrounding computers on the same cable.
Bus Topology
Application Proxy vs. Circuit Level
Simplex: One direction.
ThickNet - aka 10base5.
21. Identifys a WLAN. Can be used to segment environments into different WLANS.
Screened Sub-Net
Multistation Access Unit (MAU)
Service Set ID (SSID)
Private Branch Exchange (PBX)
22. Developed to replace the aging telephone and analog systems. BRI rate that uses two B channels (send/receive) - and one D channel (control information) - and PRI rate that uses up to 23 B channels. Supports voice - data - and video. Provides up to 1.
TCP
Direct Sequence Spread Spectrum (DSSS)
Integrated Services Digital Network (ISDN)
Packet Filtering Firewall
23. 4: Application - 3: Host-to-Host - 2: Internet - 1: Network Access - 3 -1 -1 -2 will map to the OSI model.
Layers in the TCP/IP Model
Source Routing
Commonly used in Internet.
802.15
24. Standard that outlines wireless personal area network (WPAN) technologies.
802.15
Multilevel Switching
802.16
OSI Layer 3: Network Layer
25. 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).
Packet Switching
Full-Duplex
Twisted Pair Cables
Blue Boxing
26. 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.
IPSec
Packet Switching
Switched Virtual Circuit (SVC)
Tree Topology
27. The original technique to digitized voice with 8 bits of sampling 8 -000 times per second - which yields 64 Kbps for one voice channel.
Open Relay
TCP
Pulse Code Modulation (PCM)
Session Initiation Protocol (SIP)
28. Type of ethernet implementation that uses twisted-pair copper wiring and transmits at 100Mbps.
Stateful Firewall
Isochronous Communication Processes
OSI Layer 1: Physical
10baseT
29. Faster because processing is done in the kernel. One network stack is created for each packet. 5th generation firewall - runs at the application layer.
Kernel Proxy Firewall
Simplex: One direction.
ARP (Address Resolution Protocol)
Commonly used in Ethernet.
30. Created because it was clear that available IP addresses were running out. Provides flexibility to increase or decrease the IP classes sizes as necessary.
Commonly used in Internet.
Classless inter-domain routing (CIDR)
Point-To-Point (PPP)
Digital Subscriber Line (DSL)
31. Spam over IM
Direct Sequence Spread Spectrum (DSSS)
Application Proxy vs. Circuit Level
Synchronous Optical Networks (SONETS)
SPIM
32. 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.
10baseT
Multilevel Switching
DOS attacks from flooding
Simplex: One direction.
33. 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.
Blue Boxing
ICMP (Internet Control Message Protocol)
Layer 2 Tunneling Protocol (L2TP)
Frequency Hopping Spread Spectrum (FHSS)
34. Standard that addresses wireless MAN technologies.
Packet Filtering Firewall
Mesh Topology
802.16
Carrier sense multiple access with collision detection (CSMA/CD)
35. This dedicated connection provides up to 1.544 Mbps bandwidth over 1 T1 and 24 time divided channels.
UDP
T1
Remote Access Servers
Commonly used in logical bus - Ethernet - token ring.
36. 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.
Proxy Firewall Strengths
LLC (Logical Link Control - 802.2)
Bastion Host
Integrated Services Digital Network (ISDN)
37. 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).
Source Routing
IPSec
Token Passing
Screened Sub-Net
38. Both directions - both applications can send information at a time. Session Layer Communication Modes
Bluejacking
Direct Sequence Spread Spectrum (DSSS)
Iterated Association
Full-Duplex
39. Type of wireless authentication where a shared WEP key is used to encrypt a nonce for authentication.
Circuit Level Proxy Firewall
OSI Layer 1: Physical
Shared Key Authentication (SKA)
Integrated Services Digital Network (ISDN)
40. 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
Proxy Firewall Strengths
Classless inter-domain routing (CIDR)
802.11i
Open Relay
41. 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.
Blue Boxing
Dedicated Links
Asynchronous Transfer Mode (ATM)
Star Topology
42. Security wireless standard that rotates encryption keys - stronger IV values - MAC codes for packet integrity. Works in combination with WEP.
Temporal Key Integrity Protocol (TKIP)
802.11
802.15
Point-To-Point Tunneling Protocol (PPTP)
43. This dedicated connection provides 45Mbps of bandwidth over 28 T1 lines and 672 time divided channels.
Asynchronous Transfer Mode (ATM)
Session Initiation Protocol (SIP)
ThinNet - aka 10base2
T3
44. Type of network layout that separates and group computers logically.
VLAN
Wide Area Network (WAN)
Service Set ID (SSID)
Multistation Access Unit (MAU)
45. SMTP server that is configured for sending email from any source to and destination.
UDP
Open Relay
ThickNet - aka 10base5.
Serial Line Internet Protocol (SLIP)
46. 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.
Isochronous Communication Processes
Trunk Lines
Virtual Private Network (VPN)
Stateful Firewall
47. 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.
Fiber Distributed Data Interface (FDDI)
Commonly used in Ethernet.
DNS (Domain Name System)
Shared Key Authentication (SKA)
48. 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.
Challenge Handshake Authentication Protocol (CHAP)
Pulse Code Modulation (PCM)
Wired Equivalent Privacy (WEP)
IPv6
49. 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
OSI Data encapsulation
Synchronous Data Link Control (SDLC)
Circuit Switching
50. 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
Half-Duplex
Switched Virtual Circuit (SVC)
Router
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