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CISSP Telecom And Network Security
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cissp
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. Protocol that increases address size from 32 bits to 128 bits
IGMP
Point-To-Point (PPP)
Dedicated Links
IPv6
2. Type of network layout that separates and group computers logically.
VLAN
Extensible Authentication Protocol (EAP)
Synchronous Communication
Noise
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).
Spam over Internet Telephony (SPIT)
VLAN
Multilevel Switching
Remote Access Servers
4. Problems: Central device is a single point of failure.
Session Initiation Protocol (SIP)
Classless inter-domain routing (CIDR)
Port Numbers
Star Topology
5. 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.
Port Numbers
Attenuation
Asynchronous Communication
ARP (Address Resolution Protocol)
6. 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
Router
802.15
Fiber-optic Cables
7. 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.
Repeaters
Ethernet (802.3)
VLAN
Plenum-rated Cables
8. 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
OSI Layer 3: Network Layer
Point-To-Point (PPP)
Definition of Protocol
Source Routing
9. New variant to traditional email spam on VoIP networks.
CBC-MAC Protocol (CCMP)
OSI Layer 2: Data Link Layer
Port Numbers
Spam over Internet Telephony (SPIT)
10. Problems: If one station experiences a problem - it can negatively affect surrounding computers on the same ring.
Ring Topology
High Level Data Link Control (HLDC)
TCP
Integrated Services Digital Network (ISDN)
11. This network technology determines which system will send data based on which one has the token.
Token Passing
DOS attacks from flooding
TCP
Token Ring (802.5)
12. Type of firewall that is a proxy-based firewall solution. It is circuit-based and does not provide any application-based proxies.
Circuit Level Proxy Firewall
Mesh Topology
SOCKS Firewall
OSI Layer 3: Network Layer
13. 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
Wide Area Network (WAN)
Virtual Private Network (VPN)
Proxy Firewall
14. 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.
Screened Host Firewall
Definition of Protocol
Stateful Firewall
10baseT
15. Type of topology where computers all are connected to each other - which provides redundancy.
T3
Commonly used in Internet.
Asynchronous Transfer Mode (ATM)
Packet Filtering Firewall
16. Protocol that is best-effort - connectionless - and does not sent acknowledgements.
UDP
Ring Topology
Layers in the OSI Model
Point-To-Point Tunneling Protocol (PPTP)
17. 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
TCP/IP. TCP is reliable and connection oriented - IP is unreliable and connectionless.
OSI Layer 2: Data Link Layer
Private Branch Exchange (PBX)
Packet Filtering Firewall
18. Set of rules that dictates how computer communicate over networks.
Definition of Protocol
SPIM
Blue Boxing
Reverse Address Resolution Protocol (RARP )
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.
OSI Layer 5: Session Layer
Distributed Environment Challenge
IGMP
Switch
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.
Subnetting
Session Initiation Protocol (SIP)
Virtual Private Network (VPN)
Permanent Virtual Circuit (PVC)
21. Type of network layout that is a large geographical region connecting more that one LAN.
Digital Subscriber Line (DSL)
Coaxial Cables
Point-To-Point (PPP)
Wide Area Network (WAN)
22. 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.
High Level Data Link Control (HLDC)
Password Authentication Protocol (PAP)
Open Relay
Proxy Firewall
23. 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.
Plenum-rated Cables
High Level Data Link Control (HLDC)
Service Set ID (SSID)
FDDI-2
24. Protocol that addresses vulnerabilities found in PAP. Uses challenge/response mechanism to authenticate the user instead of sending password.
Challenge Handshake Authentication Protocol (CHAP)
OSI Layer 4: Transport Layer
Dedicated Links
IGMP
25. A Temporary circuit set up for a single connection. Set up and torn down as they are needed.
Layers in the TCP/IP Model
Twisted Pair Cables
Switched Virtual Circuit (SVC)
Service Set ID (SSID)
26. Protocol based on the first version - however this version allows for fixed bandwidth to be allocated for specific applications.
Blue Boxing
FDDI-2
ThinNet - aka 10base2
802.11b
27. 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 Layer 2: Data Link Layer
Bus Topology
Kernel Proxy Firewall
28. 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.
Point-To-Point (PPP)
OSI Layer 3: Network Layer
Trunk Lines
Serial Line Internet Protocol (SLIP)
29. 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.
Simplex: One direction.
Dedicated Links
ICMP (Internet Control Message Protocol)
Layer 2 Tunneling Protocol (L2TP)
30. Protocol stack used instead of TCP/IP on wireless devices. The "gap" in this protocol involves translating its secure traffic to SSL or TLS - which is typically done by a 3rd party.
Wireless Application Protocol (WAP)
Proxy Firewall Strengths
IGMP
10baseT
31. More complexity and drastically increases the difficultly of access control. Many different devices - services - and users make it difficult to know which entities to trust and to what degree.
Packet Filtering Firewall
Distributed Environment Challenge
Password Authentication Protocol (PAP)
CBC-MAC Protocol (CCMP)
32. 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.
T3
X.25
Challenge Handshake Authentication Protocol (CHAP)
Commonly used in logical bus - Ethernet - token ring.
33. The original technique to digitized voice with 8 bits of sampling 8 -000 times per second - which yields 64 Kbps for one voice channel.
OSI Layer 7: Application
Switched Virtual Circuit (SVC)
Kernel Proxy Firewall
Pulse Code Modulation (PCM)
34. Protocol that is used by remote users to authenticate over PPP lines. Sends passwords over clear text. Vulnerable to MITM attacks.
Router
Screened Host Firewall
Password Authentication Protocol (PAP)
Packet Switching
35. Type of authentication protocol that provides a framework to enable may types of authentication techniques to be used during PPP connections. It extends the possibilities to one-time passwords - token cards - biometrics - Kerberos - and digital certi
Serial Line Internet Protocol (SLIP)
Distributed Environment Challenge
Extensible Authentication Protocol (EAP)
Cable Modem
36. 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.
Channel Service Unit/Data Service Unit (CSU/DSU)
Dynamic Packet Filtering
ARP Poisoning
Synchronous Data Link Control (SDLC)
37. The process of simulating a 2600Hz frequency tone - which allowed attackers to gain free long distance phone service.
Extensible Authentication Protocol (EAP)
Blue Boxing
Multistation Access Unit (MAU)
Private Branch Exchange (PBX)
38. Type of wireless security standard that uses AES in CBC mode.
CBC-MAC Protocol (CCMP)
802.15
FDDI-2
Proxy Firewall
39. 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.
Reverse Address Resolution Protocol (RARP )
Asynchronous Transfer Mode (ATM)
Attenuation
Source Routing
40. 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
OSI Layer 4: Transport Layer
Proxy Firewall Strengths
Frequency Hopping Spread Spectrum (FHSS)
802.11a
41. 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.
LLC (Logical Link Control - 802.2)
Session Initiation Protocol (SIP)
Tree Topology
ARP Poisoning
42. 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.
Iterated Association
Layer 2 Tunneling Protocol (L2TP)
SPIM
LLC (Logical Link Control - 802.2)
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
Carrier sense multiple access with collision detection (CSMA/CD)
Private Branch Exchange (PBX)
Synchronous Data Link Control (SDLC)
Isochronous Communication Processes
44. This dedicated connection provides 45Mbps of bandwidth over 28 T1 lines and 672 time divided channels.
Point-To-Point (PPP)
T3
IPSec
Network Address Translator (NAT)
45. 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.
Kernel Proxy Firewall
Virtual Private Network (VPN)
Ethernet (802.3)
Direct Sequence Spread Spectrum (DSSS)
46. 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.
802.11b
Router
Isochronous Communication Processes
Permanent Virtual Circuit (PVC)
47. Server that can be configured to hang up and call back remote users - but this can be compromise by enabling call forwarding.
10baseT
Remote Access Servers
Bastion Host
Frame Relay
48. Type of wireless authentication where a shared WEP key is used to encrypt a nonce for authentication.
Shared Key Authentication (SKA)
Bastion Host
Source Routing
Remote Access Servers
49. A technique that allows multiple layers of nesting. Example - IPSec tunnel can originate or terminate at a different IPSec site along the way.
Asynchronous Communication
10baseT
LLC (Logical Link Control - 802.2)
Iterated Association
50. Spam over IM
Open Relay
Challenge Handshake Authentication Protocol (CHAP)
OSI Layer 2: Data Link Layer
SPIM
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