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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 topology where all computers are connected by a unidirectional transmission link - and the cable is in a closed loop.
OSI Layer 1: Physical
Commonly used in FDDI.
Noise
ThinNet - aka 10base2
2. 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.
TCP/IP. TCP is reliable and connection oriented - IP is unreliable and connectionless.
Fiber-optic Cables
DOS attacks from flooding
ICMP (Internet Control Message Protocol)
3. Problems: Requires more expense in cabling and extra effort to track down cable faults.
OSI Layer 5: Session Layer
Definition of Protocol
DOS attacks from flooding
Mesh Topology
4. 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
OSI Layer 5: Session Layer
Asynchronous Communication
Ethernet (802.3)
5. Standard that outlines wireless personal area network (WPAN) technologies.
Spread Spectrum
Screened Host Firewall
Virtual Private Network (VPN)
802.15
6. Type of firewall that is a proxy-based firewall solution. It is circuit-based and does not provide any application-based proxies.
Layers in the OSI Model
Extensible Authentication Protocol (EAP)
SOCKS Firewall
Frame Relay
7. 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.
Commonly used in Ethernet.
Fiber Distributed Data Interface (FDDI)
CBC-MAC Protocol (CCMP)
Dedicated Links
8. Protocol that translates IP address into a MAC address (physical Ethernet address)
Token Passing
Bus Topology
OSI Data encapsulation
ARP (Address Resolution Protocol)
9. Network segment name for a DMZ created by two physical firewalls.
Attenuation
Screened Sub-Net
Blue Boxing
Multilevel Switching
10. Combines voice and data over the same IP network media and protocol. Reduces the cost of implementing and maintaining two different networks.
OSI Layer 6: Presentation
VoIP
Layer 2 Tunneling Protocol (L2TP)
Pulse Code Modulation (PCM)
11. Type of host that is locked down - hardened - system. Systems installed in the DMZ (firewalls - servers) should be installed on this type of host.
Application Proxy vs. Circuit Level
Bastion Host
Pulse Code Modulation (PCM)
Iterated Association
12. 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
Multi-protocol Label Switching
Router
Simplex: One direction.
13. Premium service offered by service providers in frame relay networks that guarantees a company a specified amount of bandwidth.
ThinNet - aka 10base2
802.16
Twisted Pair Cables
Committed Information Rate (CIR)
14. Type of network device that is the simplest type of connectivity because it only repeats and amplifies electric signals between cable segments. Works at the physical layer.
Integrated Services Digital Network (ISDN)
Repeaters
Subnetting
Metropolitan Area Network (MAN)
15. Strengths of a type of firewall: application independence - high performance - and scalability. Weaknesses include low security - no protection above the network layer.
Simplex: One direction.
Definition of Protocol
Packet Filtering Firewall
T1
16. Protocol that is used by remote users to authenticate over PPP lines. Sends passwords over clear text. Vulnerable to MITM attacks.
Simplex: One direction.
CBC-MAC Protocol (CCMP)
DNS (Domain Name System)
Password Authentication Protocol (PAP)
17. Type of cabling problem where loss of signal strength occurs as it travels due to cable exceeding its recommended length.
OSI Data encapsulation
Temporal Key Integrity Protocol (TKIP)
Attenuation
Carrier sense multiple access with collision detection (CSMA/CD)
18. Protocol for allowing multi-cast (one to many) communication
Frame Relay
Plenum-rated Cables
IGMP
Frequency Hopping Spread Spectrum (FHSS)
19. Standard that addresses wireless MAN technologies.
Isochronous Communication Processes
Multi-protocol Label Switching
Virtual Private Network (VPN)
802.16
20. 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.
802.11i
Dual-Homed Firewall
Virtual Private Network (VPN)
SPIM
21. Works like a private line for a customer with an agreed upon bandwidth. Path is programmed into the WAN devices.
Switched Virtual Circuit (SVC)
Permanent Virtual Circuit (PVC)
T1
Dedicated Links
22. Protocol that resolves host names into IP addresses and has distributed databases all over the Internet to provide name resolution.
Cable Modem
Metropolitan Area Network (MAN)
DNS (Domain Name System)
Asynchronous Transfer Mode (ATM)
23. 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
Carrier sense multiple access with collision detection (CSMA/CD)
Port Numbers
OSI Layer 3: Network Layer
Layers in the TCP/IP Model
24. Type of firewall that lies between the perimeter router and and LAN.
Screened Host Firewall
Kernel Proxy Firewall
Service Set ID (SSID)
Trunk Lines
25. 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
VLAN
Permanent Virtual Circuit (PVC)
Twisted Pair Cables
26. Type of network that allows large IP ranges to be divided into smaller - logical - and easier to maintain network segments.
Multi-protocol Label Switching
Switched Virtual Circuit (SVC)
Fiber Distributed Data Interface (FDDI)
Subnetting
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.
Dual-Homed Firewall
Bluejacking
Pulse Code Modulation (PCM)
Open Relay
28. 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)
OSI Layer 4: Transport Layer
VLAN
OSI Layer 7: Application
29. Both directions - only one application can send information at a time
802.16
ICMP (Internet Control Message Protocol)
OSI Layer 5: Session Layer
Half-Duplex
30. Network where a virtual connection that acts like a dedicated link between two systems is set up. Traffic travels in a predictable and constant manner. Example - telephone.
OSI Layer 5: Session Layer
Router
Circuit Switching
Trunk Lines
31. Type of ethernet implementation that uses a thicker coaxial cable - which allows a longer cable length to be used.
Fiber Distributed Data Interface (FDDI)
ThickNet - aka 10base5.
T1
Multilevel Switching
32. Malware attack that sends commands inside of an ICMP packet.
Dual-Homed Firewall
T1
Application Proxy Firewall
Loki Attack
33. 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
Circuit Level Proxy Firewall
Proxy Firewall Strengths
Token Ring (802.5)
Simplex: One direction.
34. Communication devices that determine synchronization scheme before data transmission.
Half-Duplex
Coaxial Cables
Synchronous Communication
802.11
35. Server that can be configured to hang up and call back remote users - but this can be compromise by enabling call forwarding.
Ring Topology
Remote Access Servers
Extensible Authentication Protocol (EAP)
Permanent Virtual Circuit (PVC)
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.
Proxy Firewall
Dynamic Packet Filtering
Bridge
OSI Layer 4: Transport Layer
37. Protocol that is reliable and connection-oriented - which means it ensures delivery through acknowledgements - sequencing - detection and correction.
OSI Layer 2: Data Link Layer
SPIM
802.11
TCP
38. 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.
Coaxial Cables
Synchronous Communication
Layer 2 Tunneling Protocol (L2TP)
Fiber-optic Cables
39. Type of network layout that is a large geographical region connecting more that one LAN.
Iterated Association
Wide Area Network (WAN)
Point-To-Point Tunneling Protocol (PPTP)
802.16
40. Type of wireless security standard that uses AES in CBC mode.
Stateful Firewall
Bridge
CBC-MAC Protocol (CCMP)
Kernel Proxy Firewall
41. Set of rules that dictates how computer communicate over networks.
Open Relay
Dual-Homed Firewall
Definition of Protocol
UDP
42. A Temporary circuit set up for a single connection. Set up and torn down as they are needed.
Virtual Private Network (VPN)
Synchronous Data Link Control (SDLC)
Open Relay
Switched Virtual Circuit (SVC)
43. 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).
Multilevel Switching
Asynchronous Communication
LLC (Logical Link Control - 802.2)
Packet Switching
44. 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.
Iterated Association
Star Topology
Plenum-rated Cables
Distributed Environment Challenge
45. Type of wireless authentication where a shared WEP key is used to encrypt a nonce for authentication.
OSI Layer 5: Session Layer
Mesh Topology
Shared Key Authentication (SKA)
Open System Authentication (OSA)
46. SMTP server that is configured for sending email from any source to and destination.
802.15
TCP
Open Relay
VLAN
47. 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.
Coaxial Cables
Subnetting
Layers in the TCP/IP Model
Ethernet (802.3)
48. Type of firewall that can be compromised if the OS does not have packet forwarding or routing turned off.
Dual-Homed Firewall
Asynchronous Communication
Layer 2 Tunneling Protocol (L2TP)
Spam over Internet Telephony (SPIT)
49. 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.
Kernel Proxy Firewall
ARP Poisoning
Bluejacking
OSI Layer 3: Network Layer
50. 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
Plenum-rated Cables
Synchronous Data Link Control (SDLC)
Proxy Firewall Strengths
Packet Filtering Firewall