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Test your basic knowledge |
CISSP Telecom And Network Security
Start Test
Study First
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. Protocol that translates IP address into a MAC address (physical Ethernet address)
ARP (Address Resolution Protocol)
Dynamic Packet Filtering
Circuit Switching
OSI Layer 1: Physical
2. 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.
Loki Attack
Isochronous Communication Processes
FDDI-2
Screened Host Firewall
3. OSI layer that prepares data for the network medium by framing it into LAN/WAN frames. Defines how the physical layer transmits the network packets. Protocols at this layer ARP (Address Resolution Protocol) - RARP (Reverse Address Resolution Protocol
Layer 2 Tunneling Protocol (L2TP)
Attenuation
Token Passing
OSI Layer 2: Data Link Layer
4. Standard that outlines wireless personal area network (WPAN) technologies.
Wired Equivalent Privacy (WEP)
Screened Host Firewall
LLC (Logical Link Control - 802.2)
802.15
5. 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.
Port Numbers
Permanent Virtual Circuit (PVC)
OSI Data encapsulation
Service Set ID (SSID)
6. Type of topology that where all computers are connected to a central device (AKA hub) - which provides more resilience for the network.
Noise
Dynamic Packet Filtering
Circuit Switching
Commonly used in logical bus - Ethernet - token ring.
7. 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.
Proxy Firewall
Commonly used in Internet.
Dynamic Packet Filtering
Switch
8. 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.
Mesh Topology
Full-Duplex
Virtual Private Network (VPN)
Simplex: One direction.
9. Strengths of a type of firewall: application independence - high performance - and scalability. Weaknesses include low security - no protection above the network layer.
Network Address Translator (NAT)
Packet Filtering Firewall
Proxy Firewall
Commonly used in logical bus - Ethernet - token ring.
10. 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
Attenuation
Spam over Internet Telephony (SPIT)
X.25
11. 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
Multistation Access Unit (MAU)
Asynchronous Transfer Mode (ATM)
Multilevel Switching
12. Protocol that is best-effort - connectionless - and does not sent acknowledgements.
Switched Virtual Circuit (SVC)
UDP
OSI Layer 4: Transport Layer
ARP (Address Resolution Protocol)
13. Premium service offered by service providers in frame relay networks that guarantees a company a specified amount of bandwidth.
ARP Poisoning
Packet Filtering Firewall
Committed Information Rate (CIR)
TCP
14. 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.
Spread Spectrum
Commonly used in logical bus - Ethernet - token ring.
TCP/IP. TCP is reliable and connection oriented - IP is unreliable and connectionless.
Metropolitan Area Network (MAN)
15. Malware attack that sends commands inside of an ICMP packet.
Dual-Homed Firewall
Loki Attack
Coaxial Cables
SOCKS Firewall
16. The process of simulating a 2600Hz frequency tone - which allowed attackers to gain free long distance phone service.
Blue Boxing
10baseT
Application Proxy Firewall
Crosstalk
17. Type of topology where computers all are connected to each other - which provides redundancy.
Metropolitan Area Network (MAN)
802.11a
Commonly used in Internet.
Fiber Distributed Data Interface (FDDI)
18. 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
Packet Filtering Firewall
Integrated Services Digital Network (ISDN)
Token Passing
19. Spam over IM
Permanent Virtual Circuit (PVC)
Temporal Key Integrity Protocol (TKIP)
Packet Filtering Firewall
SPIM
20. Server that can be configured to hang up and call back remote users - but this can be compromise by enabling call forwarding.
Multi-protocol Label Switching
Remote Access Servers
Permanent Virtual Circuit (PVC)
Packet Switching
21. Problems: Central device is a single point of failure.
Bastion Host
Star Topology
UDP
Point-To-Point Tunneling Protocol (PPTP)
22. Provides high-speed access - up to 50 Mbps - to the Internet through existing cable coaxial and fiber lines. Major security concern is the fact that neighbors use the same coaxial network and can monitor each others traffic.
10baseT
Packet Filtering Firewall
Integrated Services Digital Network (ISDN)
Cable Modem
23. 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.
Virtual Private Network (VPN)
OSI Layer 6: Presentation
Synchronous Optical Networks (SONETS)
Multi-protocol Label Switching
24. Type of network layout that separates and group computers logically.
Bastion Host
Port Numbers
VLAN
802.11i
25. Wireless LAN standard that operates in a 5Ghz range - 54Mpbs - and uses OFDM spread spectrum.
Proxy Firewall Strengths
Proxy Firewall
OSI Layer 3: Network Layer
802.11a
26. Standard that addresses wireless MAN technologies.
SPIM
Loki Attack
802.11a
802.16
27. Wireless LAN standard that operates in a 2.4Ghz range - 11Mbps - DSSS
Pulse Code Modulation (PCM)
802.11b
Proxy Firewall
10baseT
28. 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.
802.16
DOS attacks from flooding
T3
LLC (Logical Link Control - 802.2)
29. 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.
ICMP (Internet Control Message Protocol)
Source Routing
Bus Topology
30. Application layer request/response protocol widely used for VoIP communication sessions. Transported by UDP - makes use of TCP - and is vulnerable to sniffing attacks.
Wired Equivalent Privacy (WEP)
Session Initiation Protocol (SIP)
Trunk Lines
T1
31. An older protocol that was used by ISP's to encapsulate data to be sent over dial up connections
Serial Line Internet Protocol (SLIP)
Bastion Host
SOCKS Firewall
Proxy Firewall Strengths
32. Protocol for allowing multi-cast (one to many) communication
Password Authentication Protocol (PAP)
OSI Layer 3: Network Layer
IGMP
FDDI-2
33. 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.
Carrier sense multiple access with collision detection (CSMA/CD)
Loki Attack
Application Proxy vs. Circuit Level
Stateful Firewall
34. A technique that allows multiple layers of nesting. Example - IPSec tunnel can originate or terminate at a different IPSec site along the way.
Iterated Association
Challenge Handshake Authentication Protocol (CHAP)
SPIM
Ethernet (802.3)
35. 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.
Multistation Access Unit (MAU)
Proxy Firewall
CBC-MAC Protocol (CCMP)
OSI Layer 5: Session Layer
36. 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.
ARP (Address Resolution Protocol)
T1
802.11a
Open System Authentication (OSA)
37. 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.
802.11
Repeaters
IPv6
T1
38. Type of cabling problem signals from one wire crossing over to another wire.
Crosstalk
Dedicated Links
Temporal Key Integrity Protocol (TKIP)
Commonly used in Ethernet.
39. 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.
OSI Layer 1: Physical
Fiber Distributed Data Interface (FDDI)
Fiber-optic Cables
Frame Relay
40. 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)
Token Ring (802.5)
FDDI-2
OSI Layer 4: Transport Layer
41. 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.
Service Set ID (SSID)
Star Topology
Token Ring (802.5)
Virtual Private Network (VPN)
42. 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.
Pulse Code Modulation (PCM)
OSI Data encapsulation
Asynchronous Transfer Mode (ATM)
Subnetting
43. Device used within companies to provide multiple services to users throughout a building or facility. Example - dialing 9 to place outbound phone calls. Security concerns: default configurations and passwords - maintenance modems disabled - unused co
Repeaters
High Level Data Link Control (HLDC)
Private Branch Exchange (PBX)
Password Authentication Protocol (PAP)
44. Both directions - both applications can send information at a time. Session Layer Communication Modes
OSI Data encapsulation
Noise
Full-Duplex
Open Relay
45. 7: Application - 6: Presentation - 5: Session - 4: Transport - 3: Network - 2: Data Link - 1: Physical - Remember 'All People Seem To Need Data Processing'
802.11
Packet Filtering Firewall
Layers in the OSI Model
Fiber Distributed Data Interface (FDDI)
46. This dedicated connection provides 45Mbps of bandwidth over 28 T1 lines and 672 time divided channels.
Bridge
OSI Layer 4: Transport Layer
Direct Sequence Spread Spectrum (DSSS)
T3
47. Wireless communication that splits total amount of bandwidth into smaller sub-channels. Send and receiver work in one of the channels for a period of time - and then move into a different channel. It uses a portion of the bandwidth - throughput of 1-
Dedicated Links
Layer 2 Tunneling Protocol (L2TP)
Frequency Hopping Spread Spectrum (FHSS)
Isochronous Communication Processes
48. A Temporary circuit set up for a single connection. Set up and torn down as they are needed.
Carrier sense multiple access with collision detection (CSMA/CD)
Switched Virtual Circuit (SVC)
Bastion Host
Bridge
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.
Remote Access Servers
Crosstalk
Session Initiation Protocol (SIP)
ARP Poisoning
50. In the OSI layer 5 - these are the types of what?
SOCKS Firewall
Simplex: One direction.
Tree Topology
Switch