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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. Server that can be configured to hang up and call back remote users - but this can be compromise by enabling call forwarding.
Remote Access Servers
Mesh Topology
Commonly used in Ethernet.
802.11a
2. 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.
Dual-Homed Firewall
ICMP (Internet Control Message Protocol)
Fiber-optic Cables
Packet Filtering Firewall
3. Layer 3 - layer 4 - and other layer switches have more enhanced functionality than layer 2 switches. Combines switching and routing technologies - packet inspection - traffic prioritization - and quality of service (QoS).
Router
Wired Equivalent Privacy (WEP)
Multilevel Switching
ThickNet - aka 10base5.
4. 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.
Point-To-Point Tunneling Protocol (PPTP)
Password Authentication Protocol (PAP)
Wired Equivalent Privacy (WEP)
Carrier sense multiple access with collision detection (CSMA/CD)
5. 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.
OSI Layer 1: Physical
OSI Layer 6: Presentation
OSI Layer 2: Data Link Layer
Temporal Key Integrity Protocol (TKIP)
6. Faster because processing is done in the kernel. One network stack is created for each packet. 5th generation firewall - runs at the application layer.
Multistation Access Unit (MAU)
Kernel Proxy Firewall
Repeaters
DOS attacks from flooding
7. Encapsulation protocol for telecommunication connections. Replaced SLIP and is ideal for connection different types of devices over serial lines.
Metropolitan Area Network (MAN)
Point-To-Point (PPP)
Wireless Application Protocol (WAP)
Direct Sequence Spread Spectrum (DSSS)
8. Type of topology where computers all are connected to each other - which provides redundancy.
Frame Relay
Ring Topology
Stateful Firewall
Commonly used in Internet.
9. Type of ethernet implementation that uses a thicker coaxial cable - which allows a longer cable length to be used.
Kernel Proxy Firewall
Remote Access Servers
ThickNet - aka 10base5.
Session Initiation Protocol (SIP)
10. Type of topology that where all computers are connected to a central device (AKA hub) - which provides more resilience for the network.
Frame Relay
Commonly used in logical bus - Ethernet - token ring.
Isochronous Communication Processes
Iterated Association
11. Blue tooth vulnerability where an attacker sends messages to a receiver that is in discovery mode.
Wireless Application Protocol (WAP)
10baseT
Ring Topology
Bluejacking
12. Network segment name for a DMZ created by two physical firewalls.
Wired Equivalent Privacy (WEP)
Password Authentication Protocol (PAP)
Multistation Access Unit (MAU)
Screened Sub-Net
13. 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).
Channel Service Unit/Data Service Unit (CSU/DSU)
Synchronous Data Link Control (SDLC)
Iterated Association
Digital Subscriber Line (DSL)
14. Type of firewall that can be compromised if the OS does not have packet forwarding or routing turned off.
Committed Information Rate (CIR)
Dual-Homed Firewall
10baseT
Temporal Key Integrity Protocol (TKIP)
15. Used when companies do not want systems to know internal hosts IP addresses. Enables companies to use private - nonroutable IP addresses.
Point-To-Point Tunneling Protocol (PPTP)
Layer 2 Tunneling Protocol (L2TP)
Network Address Translator (NAT)
Direct Sequence Spread Spectrum (DSSS)
16. 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.
Frame Relay
Fiber Distributed Data Interface (FDDI)
T3
Virtual Private Network (VPN)
17. Type of ethernet implementation that uses a standard coaxial cable with a maximum cable length of 185 meters. 10Mbps.
ThinNet - aka 10base2
Star Topology
Fiber Distributed Data Interface (FDDI)
X.25
18. 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.
High Level Data Link Control (HLDC)
Direct Sequence Spread Spectrum (DSSS)
Layers in the TCP/IP Model
VLAN
19. 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.
Proxy Firewall Strengths
802.11b
Dynamic Packet Filtering
OSI Layer 5: Session Layer
20. Standard for transmitting data across the Internet. One is reliable and connection oriented. The other is unreliable and connectionless.
TCP/IP. TCP is reliable and connection oriented - IP is unreliable and connectionless.
Remote Access Servers
Private Branch Exchange (PBX)
Multilevel Switching
21. An older protocol that was used by ISP's to encapsulate data to be sent over dial up connections
IPv6
Serial Line Internet Protocol (SLIP)
Coaxial Cables
VoIP
22. 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.
DOS attacks from flooding
Serial Line Internet Protocol (SLIP)
Attenuation
Service Set ID (SSID)
23. Standard that addresses wireless MAN technologies.
Coaxial Cables
ARP Poisoning
802.16
802.11
24. 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.
X.25
Commonly used in Internet.
Asynchronous Communication
High Level Data Link Control (HLDC)
25. 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 1: Physical
Circuit Level Proxy Firewall
Digital Subscriber Line (DSL)
Fiber Distributed Data Interface (FDDI)
26. Wireless LAN standard that operates in a 5Ghz range - 54Mpbs - and uses OFDM spread spectrum.
802.11a
OSI Layer 4: Transport Layer
Switched Virtual Circuit (SVC)
Synchronous Data Link Control (SDLC)
27. Type of wireless authentication where a shared WEP key is used to encrypt a nonce for authentication.
Distributed Environment Challenge
Shared Key Authentication (SKA)
Bridge
IPSec
28. A packet switching technology that is used by telecommunication services for data-only traffic. It is a subscriber based service that operates within the network and data link layers.
IGMP
Coaxial Cables
Temporal Key Integrity Protocol (TKIP)
X.25
29. SMTP server that is configured for sending email from any source to and destination.
Classless inter-domain routing (CIDR)
Twisted Pair Cables
Open Relay
Remote Access Servers
30. 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.
Channel Service Unit/Data Service Unit (CSU/DSU)
DNS (Domain Name System)
Temporal Key Integrity Protocol (TKIP)
Frame Relay
31. Type of firewall that keeps track of each communication session. It must maintain a state table that contains data about each connection. 3rd generation firewall - runs at the network layer.
T1
Packet Filtering Firewall
Stateful Firewall
X.25
32. Wireless LAN standard that operates in a 2.4Ghz range - 11Mbps - DSSS
TCP
Point-To-Point (PPP)
Simplex: One direction.
802.11b
33. Communication devices that determine synchronization scheme before data transmission.
High Level Data Link Control (HLDC)
LLC (Logical Link Control - 802.2)
Source Routing
Synchronous Communication
34. 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.
Trunk Lines
ARP Poisoning
Frame Relay
Challenge Handshake Authentication Protocol (CHAP)
35. Problems: Requires more expense in cabling and extra effort to track down cable faults.
Carrier sense multiple access with collision detection (CSMA/CD)
Mesh Topology
Trunk Lines
Integrated Services Digital Network (ISDN)
36. 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.
Token Ring (802.5)
OSI Layer 5: Session Layer
Proxy Firewall
Metropolitan Area Network (MAN)
37. Wireless communication that distributes individual signals across the allocated frequencies.
Screened Host Firewall
ThickNet - aka 10base5.
Spread Spectrum
Token Passing
38. 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)
Temporal Key Integrity Protocol (TKIP)
Bluejacking
802.11
39. 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.
Packet Filtering Firewall
Permanent Virtual Circuit (PVC)
Application Proxy Firewall
Distributed Environment Challenge
40. 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
Circuit Level Proxy Firewall
OSI Layer 1: Physical
Metropolitan Area Network (MAN)
41. This is a standard for fiber-optic cabling and uses self-healing network rings. This standard describes the interfaces that can be used over fiber lines and the signaling that can be employed. Works at the physical layer of the OSI model.
Reverse Address Resolution Protocol (RARP )
Commonly used in logical bus - Ethernet - token ring.
Synchronous Optical Networks (SONETS)
IPv6
42. Protocol that translates IP address into a MAC address (physical Ethernet address)
OSI Layer 6: Presentation
ThinNet - aka 10base2
Password Authentication Protocol (PAP)
ARP (Address Resolution Protocol)
43. Protocol that addresses vulnerabilities found in PAP. Uses challenge/response mechanism to authenticate the user instead of sending password.
OSI Data encapsulation
Spread Spectrum
Challenge Handshake Authentication Protocol (CHAP)
Screened Sub-Net
44. 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)
Crosstalk
Ring Topology
45. 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.
Subnetting
Dynamic Packet Filtering
OSI Layer 3: Network Layer
Packet Filtering Firewall
46. 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.
Token Passing
Spam over Internet Telephony (SPIT)
Plenum-rated Cables
Ring Topology
47. 4: Application - 3: Host-to-Host - 2: Internet - 1: Network Access - 3 -1 -1 -2 will map to the OSI model.
Ethernet (802.3)
Packet Filtering Firewall
Spam over Internet Telephony (SPIT)
Layers in the TCP/IP Model
48. Problems: If one station experiences a problem - it can negatively affect surrounding computers on the same cable.
ThinNet - aka 10base2
Bus Topology
X.25
Screened Host Firewall
49. 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
Classless inter-domain routing (CIDR)
OSI Layer 5: Session Layer
OSI Layer 3: Network Layer
Bus Topology
50. Type of cabling problem where loss of signal strength occurs as it travels due to cable exceeding its recommended length.
Token Ring (802.5)
Network Address Translator (NAT)
Attenuation
OSI Layer 1: Physical
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