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Test your basic knowledge |
CISSP Telecom And Network Security
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Study First
Subjects
:
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. 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
Extensible Authentication Protocol (EAP)
Asynchronous Transfer Mode (ATM)
Wired Equivalent Privacy (WEP)
2. Standard for transmitting data across the Internet. One is reliable and connection oriented. The other is unreliable and connectionless.
Wireless Application Protocol (WAP)
TCP/IP. TCP is reliable and connection oriented - IP is unreliable and connectionless.
Proxy Firewall
DNS (Domain Name System)
3. Wireless communication that distributes individual signals across the allocated frequencies.
Spread Spectrum
Switch
Proxy Firewall
Ring Topology
4. Protocol that translates IP address into a MAC address (physical Ethernet address)
Service Set ID (SSID)
Ethernet (802.3)
ARP (Address Resolution Protocol)
High Level Data Link Control (HLDC)
5. Combines voice and data over the same IP network media and protocol. Reduces the cost of implementing and maintaining two different networks.
Coaxial Cables
VoIP
OSI Layer 5: Session Layer
Open Relay
6. Both directions - both applications can send information at a time. Session Layer Communication Modes
Full-Duplex
Commonly used in Ethernet.
Iterated Association
Metropolitan Area Network (MAN)
7. In a token ring network - each computer is connected to this - which acts as a central hub.
Tree Topology
802.15
Multistation Access Unit (MAU)
OSI Layer 4: Transport Layer
8. Strengths of a type of firewall: application independence - high performance - and scalability. Weaknesses include low security - no protection above the network layer.
Serial Line Internet Protocol (SLIP)
Multilevel Switching
Proxy Firewall
Packet Filtering Firewall
9. A technique that allows multiple layers of nesting. Example - IPSec tunnel can originate or terminate at a different IPSec site along the way.
Layer 2 Tunneling Protocol (L2TP)
Iterated Association
T3
Half-Duplex
10. Security wireless standard that rotates encryption keys - stronger IV values - MAC codes for packet integrity. Works in combination with WEP.
Twisted Pair Cables
Temporal Key Integrity Protocol (TKIP)
Dual-Homed Firewall
Point-To-Point (PPP)
11. 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
Service Set ID (SSID)
Point-To-Point (PPP)
DOS attacks from flooding
12. Problems: Requires more expense in cabling and extra effort to track down cable faults.
Stateful Firewall
Bus Topology
TCP
Mesh Topology
13. 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.
Channel Service Unit/Data Service Unit (CSU/DSU)
IGMP
IPSec
Circuit Level Proxy Firewall
14. Problems: If one station experiences a problem - it can negatively affect surrounding computers on the same ring.
Ring Topology
Permanent Virtual Circuit (PVC)
Definition of Protocol
10baseT
15. Wireless LAN standard that operates in a 5Ghz range - 54Mpbs - and uses OFDM spread spectrum.
OSI Layer 6: Presentation
Commonly used in Ethernet.
802.11a
Private Branch Exchange (PBX)
16. 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
Switch
Open Relay
Coaxial Cables
Iterated Association
17. 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.
ICMP (Internet Control Message Protocol)
ThinNet - aka 10base2
High Level Data Link Control (HLDC)
Pulse Code Modulation (PCM)
18. Type of cable that is more expensive than UTP and STP - more resistant to EMI - can carry baseband and board band technologies.
Bastion Host
ThinNet - aka 10base2
Coaxial Cables
Service Set ID (SSID)
19. 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).
Port Numbers
802.11i
IPSec
Channel Service Unit/Data Service Unit (CSU/DSU)
20. Premium service offered by service providers in frame relay networks that guarantees a company a specified amount of bandwidth.
IPSec
Session Initiation Protocol (SIP)
Committed Information Rate (CIR)
Isochronous Communication Processes
21. Blue tooth vulnerability where an attacker sends messages to a receiver that is in discovery mode.
Bluejacking
802.16
Spread Spectrum
Permanent Virtual Circuit (PVC)
22. Wireless standard that will improve security of wireless communication
802.11i
High Level Data Link Control (HLDC)
Router
Ring Topology
23. Protocol that resolves host names into IP addresses and has distributed databases all over the Internet to provide name resolution.
Attenuation
Frame Relay
ARP Poisoning
DNS (Domain Name System)
24. 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.
Layers in the OSI Model
OSI Data encapsulation
Synchronous Optical Networks (SONETS)
DOS attacks from flooding
25. 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.
Bridge
Circuit Switching
VoIP
10baseT
26. 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
Plenum-rated Cables
Direct Sequence Spread Spectrum (DSSS)
Frame Relay
27. Type of wireless authentication where a shared WEP key is used to encrypt a nonce for authentication.
Shared Key Authentication (SKA)
Metropolitan Area Network (MAN)
802.16
Multilevel Switching
28. 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.
Frame Relay
Service Set ID (SSID)
High Level Data Link Control (HLDC)
ARP Poisoning
29. Created because it was clear that available IP addresses were running out. Provides flexibility to increase or decrease the IP classes sizes as necessary.
10baseT
Classless inter-domain routing (CIDR)
Router
Packet Filtering Firewall
30. Works like a private line for a customer with an agreed upon bandwidth. Path is programmed into the WAN devices.
Mesh Topology
Temporal Key Integrity Protocol (TKIP)
Permanent Virtual Circuit (PVC)
ARP Poisoning
31. This network technology determines which system will send data based on which one has the token.
Isochronous Communication Processes
Application Proxy Firewall
Token Passing
Dedicated Links
32. Protocol that increases address size from 32 bits to 128 bits
Loki Attack
Commonly used in Ethernet.
Integrated Services Digital Network (ISDN)
IPv6
33. 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.
Simplex: One direction.
Network Address Translator (NAT)
Serial Line Internet Protocol (SLIP)
Source Routing
34. Type of topology where computers all are connected to each other - which provides redundancy.
Commonly used in Internet.
Layers in the TCP/IP Model
Session Initiation Protocol (SIP)
Dynamic Packet Filtering
35. Protocol that is reliable and connection-oriented - which means it ensures delivery through acknowledgements - sequencing - detection and correction.
Application Proxy Firewall
Wireless Application Protocol (WAP)
TCP
Twisted Pair Cables
36. Used when companies do not want systems to know internal hosts IP addresses. Enables companies to use private - nonroutable IP addresses.
Digital Subscriber Line (DSL)
Frame Relay
Token Passing
Network Address Translator (NAT)
37. Standard that addresses wireless MAN technologies.
802.16
OSI Layer 6: Presentation
Screened Sub-Net
Token Ring (802.5)
38. Type of host that is locked down - hardened - system. Systems installed in the DMZ (firewalls - servers) should be installed on this type of host.
SOCKS Firewall
Bastion Host
Private Branch Exchange (PBX)
Metropolitan Area Network (MAN)
39. 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
Router
Proxy Firewall Strengths
Serial Line Internet Protocol (SLIP)
40. 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.
Dynamic Packet Filtering
Switch
ICMP (Internet Control Message Protocol)
Fiber Distributed Data Interface (FDDI)
41. 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.
Bluejacking
Commonly used in Ethernet.
ThinNet - aka 10base2
Bastion Host
42. 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)
Metropolitan Area Network (MAN)
DOS attacks from flooding
Open Relay
43. 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.
Circuit Level Proxy Firewall
Direct Sequence Spread Spectrum (DSSS)
Screened Host Firewall
OSI Layer 4: Transport Layer
44. Application layer request/response protocol widely used for VoIP communication sessions. Transported by UDP - makes use of TCP - and is vulnerable to sniffing attacks.
Switch
FDDI-2
Session Initiation Protocol (SIP)
OSI Layer 7: Application
45. Communication process that must deliver data with set time constraints. Applications are typically video related where audio and must match perfectly. VoIP is another example.
High Level Data Link Control (HLDC)
802.16
Isochronous Communication Processes
Frame Relay
46. 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.
Layer 2 Tunneling Protocol (L2TP)
ThinNet - aka 10base2
UDP
ARP Poisoning
47. 4: Application - 3: Host-to-Host - 2: Internet - 1: Network Access - 3 -1 -1 -2 will map to the OSI model.
ARP (Address Resolution Protocol)
Point-To-Point Tunneling Protocol (PPTP)
Layers in the TCP/IP Model
Digital Subscriber Line (DSL)
48. Type of backbone network that joins together LAN to other LANs and WANs to LANs - etc. Typically known as Synchronous Optical Networks (SONETS) or FDDI rings.
802.16
Metropolitan Area Network (MAN)
Bluejacking
Commonly used in FDDI.
49. 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.
802.11
Service Set ID (SSID)
Router
Asynchronous Transfer Mode (ATM)
50. The well known values range from 0-1023. FTP runs on 20 and 21 - SMTP runs on 25 - TFTP runs on 69 - DNS runs on 53 - HTTP runs on 80 - HTTPS runs on 443 - SNMP runs on 161.
IPSec
Port Numbers
OSI Layer 4: Transport Layer
Circuit Switching