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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 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
FDDI-2
Attenuation
OSI Layer 6: Presentation
2. Type of network device that allows different network segments and/or systems to communicate. When communication takes place - a dedicated connection is set up - so collision and broadcast data is not available to other devices. Combined repeater (hub
Multistation Access Unit (MAU)
Wireless Application Protocol (WAP)
IPv6
Switch
3. 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.
Bluejacking
Dynamic Packet Filtering
ThinNet - aka 10base2
T1
4. Standard for transmitting data across the Internet. One is reliable and connection oriented. The other is unreliable and connectionless.
Private Branch Exchange (PBX)
TCP/IP. TCP is reliable and connection oriented - IP is unreliable and connectionless.
Star Topology
Simplex: One direction.
5. Type of network layout that is a large geographical region connecting more that one LAN.
OSI Layer 7: Application
Fiber-optic Cables
Session Initiation Protocol (SIP)
Wide Area Network (WAN)
6. 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.
Synchronous Data Link Control (SDLC)
UDP
Network Address Translator (NAT)
Fiber Distributed Data Interface (FDDI)
7. 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.
Open System Authentication (OSA)
Iterated Association
Service Set ID (SSID)
Circuit Level Proxy Firewall
8. 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.
Point-To-Point Tunneling Protocol (PPTP)
IGMP
802.16
OSI Layer 6: Presentation
9. Type of firewall that lies between the perimeter router and and LAN.
Virtual Private Network (VPN)
Screened Host Firewall
Proxy Firewall Strengths
Open Relay
10. 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
Dual-Homed Firewall
802.16
Integrated Services Digital Network (ISDN)
11. Protocol that addresses vulnerabilities found in PAP. Uses challenge/response mechanism to authenticate the user instead of sending password.
Challenge Handshake Authentication Protocol (CHAP)
Bluejacking
Virtual Private Network (VPN)
Noise
12. 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.
Ethernet (802.3)
Session Initiation Protocol (SIP)
VLAN
IPSec
13. Security wireless standard that rotates encryption keys - stronger IV values - MAC codes for packet integrity. Works in combination with WEP.
Wide Area Network (WAN)
Temporal Key Integrity Protocol (TKIP)
Token Ring (802.5)
IPSec
14. 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.
Repeaters
OSI Layer 7: Application
IPSec
OSI Layer 4: Transport Layer
15. 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.
OSI Layer 5: Session Layer
Layers in the OSI Model
Direct Sequence Spread Spectrum (DSSS)
ThinNet - aka 10base2
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.
Crosstalk
Virtual Private Network (VPN)
Token Passing
Point-To-Point (PPP)
17. Protocol based on the first version - however this version allows for fixed bandwidth to be allocated for specific applications.
X.25
FDDI-2
Point-To-Point (PPP)
Fiber-optic Cables
18. 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.
Classless inter-domain routing (CIDR)
Permanent Virtual Circuit (PVC)
Open System Authentication (OSA)
Synchronous Communication
19. Strengths of a type of firewall: application independence - high performance - and scalability. Weaknesses include low security - no protection above the network layer.
Packet Filtering Firewall
OSI Data encapsulation
Channel Service Unit/Data Service Unit (CSU/DSU)
Subnetting
20. 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.
ARP (Address Resolution Protocol)
Tree Topology
Multistation Access Unit (MAU)
Proxy Firewall
21. 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
Bridge
Virtual Private Network (VPN)
OSI Layer 3: Network Layer
Private Branch Exchange (PBX)
22. A Temporary circuit set up for a single connection. Set up and torn down as they are needed.
Layers in the TCP/IP Model
Switched Virtual Circuit (SVC)
Screened Sub-Net
Definition of Protocol
23. 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
Circuit Level Proxy Firewall
Virtual Private Network (VPN)
Open System Authentication (OSA)
24. Works like a private line for a customer with an agreed upon bandwidth. Path is programmed into the WAN devices.
Router
Permanent Virtual Circuit (PVC)
Commonly used in logical bus - Ethernet - token ring.
Frequency Hopping Spread Spectrum (FHSS)
25. Type of firewall that is a proxy-based firewall solution. It is circuit-based and does not provide any application-based proxies.
Multi-protocol Label Switching
Token Ring (802.5)
Ring Topology
SOCKS Firewall
26. Combines voice and data over the same IP network media and protocol. Reduces the cost of implementing and maintaining two different networks.
OSI Layer 1: Physical
OSI Layer 4: Transport Layer
Commonly used in FDDI.
VoIP
27. Type of wireless security standard that uses AES in CBC mode.
Stateful Firewall
Frequency Hopping Spread Spectrum (FHSS)
CBC-MAC Protocol (CCMP)
Blue Boxing
28. 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.
Repeaters
Synchronous Data Link Control (SDLC)
IPv6
Virtual Private Network (VPN)
29. Problems: Central device is a single point of failure.
Star Topology
Packet Filtering Firewall
Reverse Address Resolution Protocol (RARP )
Commonly used in logical bus - Ethernet - token ring.
30. 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)
Commonly used in logical bus - Ethernet - token ring.
Password Authentication Protocol (PAP)
Temporal Key Integrity Protocol (TKIP)
31. Type of network device that links 2 or more network segments - where each segment can function as an independent network. Works at the network layer - works with IP addresses - and has more network knowledge than the other hardware.
Router
OSI Layer 2: Data Link Layer
Layers in the OSI Model
Repeaters
32. Protocol that translates IP address into a MAC address (physical Ethernet address)
ARP (Address Resolution Protocol)
Simplex: One direction.
Layers in the TCP/IP Model
Asynchronous Communication
33. A simplified version of X.25 - without the error checking that was done on the network. It handles error checking at the end node - which helps improve speed dramatically.
Frame Relay
Dual-Homed Firewall
Ring Topology
OSI Layer 2: Data Link Layer
34. A technique that allows multiple layers of nesting. Example - IPSec tunnel can originate or terminate at a different IPSec site along the way.
Ring Topology
Commonly used in FDDI.
Iterated Association
X.25
35. 4: Application - 3: Host-to-Host - 2: Internet - 1: Network Access - 3 -1 -1 -2 will map to the OSI model.
802.15
Layers in the TCP/IP Model
VoIP
Classless inter-domain routing (CIDR)
36. 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
ICMP (Internet Control Message Protocol)
Multi-protocol Label Switching
Distributed Environment Challenge
Challenge Handshake Authentication Protocol (CHAP)
37. Server that can be configured to hang up and call back remote users - but this can be compromise by enabling call forwarding.
DOS attacks from flooding
Remote Access Servers
Token Passing
Committed Information Rate (CIR)
38. In a token ring network - each computer is connected to this - which acts as a central hub.
Multistation Access Unit (MAU)
Frame Relay
802.11a
Commonly used in Internet.
39. 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.
Trunk Lines
802.15
Application Proxy vs. Circuit Level
Bus Topology
40. Type of network layout that separates and group computers logically.
ARP (Address Resolution Protocol)
FDDI-2
Challenge Handshake Authentication Protocol (CHAP)
VLAN
41. 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.
Definition of Protocol
UDP
Multilevel Switching
Carrier sense multiple access with collision detection (CSMA/CD)
42. 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.
Repeaters
Tree Topology
Pulse Code Modulation (PCM)
Point-To-Point (PPP)
43. Both directions - only one application can send information at a time
Half-Duplex
OSI Layer 3: Network Layer
Permanent Virtual Circuit (PVC)
TCP/IP. TCP is reliable and connection oriented - IP is unreliable and connectionless.
44. Type of ethernet implementation that uses a standard coaxial cable with a maximum cable length of 185 meters. 10Mbps.
Bluejacking
ThinNet - aka 10base2
Layers in the OSI Model
VLAN
45. 7: Application - 6: Presentation - 5: Session - 4: Transport - 3: Network - 2: Data Link - 1: Physical - Remember 'All People Seem To Need Data Processing'
Layers in the OSI Model
ARP (Address Resolution Protocol)
OSI Layer 3: Network Layer
Tree Topology
46. 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.
Proxy Firewall
Token Ring (802.5)
Committed Information Rate (CIR)
ThinNet - aka 10base2
47. OSI layer that has services and protocols required by the user's applications for network functionality. Example protocols include HTTP - SMTP - FTP - Telnet.
OSI Layer 7: Application
Circuit Switching
Twisted Pair Cables
802.11b
48. 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.
Commonly used in Ethernet.
Switch
Pulse Code Modulation (PCM)
T3
49. Type of cabling problem where loss of signal strength occurs as it travels due to cable exceeding its recommended length.
Kernel Proxy Firewall
Spread Spectrum
Attenuation
Full-Duplex
50. 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.
Dual-Homed Firewall
Full-Duplex
Service Set ID (SSID)
High Level Data Link Control (HLDC)