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Comptia Definitions
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1Restricting internet access to specific sites, prevent access to certain sites, or to control access by user or time of day. This is commonly done in school, business, government, or even home networks.
- Afirewall
- BProxy server
- CReverse proxy server
2Can be used to cache information. for example it can cache frequently accessed information from the web server. When requests from the internet arrive, it can fulfill the request instead of forwarding it onto the webserver.
- Areverse proxy server
- Bproxy server
- Cfirewall
3A cryptographic network protocol for operating network services securely over an unsecured network. Typical applications include remote command-line, login, and remote command execution, but any network service can be secured with [blank_start]SSH (secure Shell)[blank_end]
- ASSH (secure Shell)
- BVPN (Virtual Private Network)
4What are some of the ports Proxy servers run on? (SELECT TWO)
- A3128
- B8080
- C6672
- D3389
- E5631
5Its a device that stands as an intermediary between a host and the internet. It is a specific implementation of a firewall that uses filter rules to allow or deny internet traffic. Every packet is stopped and inspected, which causes a break between the client and the server on the internet.
- AHTTPS
- BHTTP
- CFTP
- DProxy Server
- EFirewall
6Blocking employees from unwanted webpages and caching webpages are the function of a...
- Afirewall
- BProxy server
- CSecure Protocol
7Can allow internet access based on users, time of day, and websites visited
- AProxy server
- BFirewall
- CPort forwarding
- DSecure protocol
8uses encryption to securely send data over an untrusted network. Over the years, Use has become very widespread due to the expense of regular connections.
- AWAN
- BVPN
- CLAN
- DPSTN
9Which protocol uses port 443?
- ASSL
- BL2TP
- CPPTP
- DVPN
10allows an individual host connected to the internet to establish a VPN connection to another host on the other end. With a host-to-host connection, both ends of the connection need to be configured to use same the VPN protocol. The sender will use the protocol to encrypt and encapsulate packets before sending them through the internet. The receiver on the other end must use the same protocol to de-encapsulate and decrypt the packets.
- AHost to Host
- BPPTP
- CFTP
- DL2TP
11An open standard for secure multiprotocol routing.
-Supports multiple protocols (not just IP)
-Uses IPsec for encryption
-Is not supported by older operating systems
-Uses TCP port 1701 and UDP port 500- ALayer Two Tunneling Protocol (L2TP)
- BPoint-to-Point Tunneling Protocol (PPTP)
- CInternet Protocol Security (IPsec)
- DA virtual private network (VPN)
12A tunneling protocol that encrypts packet contents and wraps them in an unencrypted packet.
- AA virtual private network (VPN)
- BPoint-to-Point Tunneling Protocol (PPTP)
- CLayer Two Tunneling Protocol (L2TP)
- DInternet Protocol Security (IPsec)
13-one of the first VPN protocols.
-Uses standard authentication protocols, such as CHAP and PAP
-Supports TCP/IP only
-Is supported by most operating systems and servers
-Uses TCP port 1723- Avirtual private network (VPN)
- BLayer Two Tunneling Protocol (L2TP)
- CPoint-to-Point Tunneling Protocol (PPTP)
- DInternet Protocol Security (IPsec)
14Provides authentication and encryption, and it can be used in conjunction with L2TP or by itself as a VPN solution. It includes the following three protocols for authentication, data encryption, and connection negotiation:
-Authentication Header (AH) enables authentication with IPsec.
-Encapsulating Security Payload (ESP) provides data encryption.
-Internet Key Exchange (IKE) negotiates the connection.- APoint-to-Point Tunneling Protocol (PPTP)
- BLayer Two Tunneling Protocol (L2TP)
- CInternet Protocol Security (IPsec)
- Dvirtual private network (VPN)
15A tunneling protocol that was developed by Cisco. It can be used to route any Layer 3 protocol across an IP network.
-Creates a tunnel between two routers.
-Encapsulates packets by adding a (blank) header and a new IP header to the original packet.
-Does not offer any type of encryption.
-Can be paired with other protocols, such as IPsec or PPTP, to create a secure VPN connection.- AAuthentication Header (AH)
- BInternet Key Exchange (IKE)
- CEncapsulating Security Payload (ESP)
- DGeneric Routing Encapsulation (GRE)
16A protocol has long been used to secure traffic generated by IP protocols such as HTTP, FTP, and email. it can also be used as a VPN solution, typically in a remote access scenario:
-Authenticates the server to the client using public key cryptography and digital certificates
-Encrypts the entire communication session
-Uses port 443, which is already open on most firewalls- ASecure Sockets Layer (SSL)
- BInternet Key Exchange (IKE)
- CEncapsulating Security Payload (ESP)
- DAuthentication Header (AH)
17is used to intercept information passing between two communication partners. An attacker inserts himself in the communication flow between the client and server. The client is fooled into authenticating to the attacker.
- AMan-in-the-Middle
- BReplay Attack
- CPhishing
- DHTTP (session) Hijacking
18A scam employs an email pretending to be from a trusted organization, asking to verify personal information or send a credit card number.
- Aphishing
- BHTTP (session) Hijacking
- CMan-in-the-middle
- DTCP/IP (session) Hijacking
19 hijacking is a real-time attack in which the attacker hijacks a legitimate user's cookies and uses the cookies to take over.
- AHTTP (session) Hijacking
- BTCP/IP (session) Hijacking
- CPhishing
- DReplay Attack
20the attacker uses a protocol analyzer or sniffer to capture authentication information going from the client to the server. The attacker then uses this information to connect at a later time and pretend to be the client.
- AHTTP (session) Hijacking
- BReplay Attack
- CTCP/IP (session) Hijacking
- DPhishing
21an extension of a man-in-the-middle attack where the attacker steals an open and active communication session from a legitimate user
- AReplay Attack
- BHTTP (session) Hijacking
- CTCP/IP (session) Hijacking
- DPhishing
22is a computer that is infected with malware that allows remote software updates and control by a command and control center
- AHTTP (session) Hijacking
- BPhishing
- CZombie
- DTCP/IP (session) Hijacking
23Sends messages to associate a different MAC address with an IP address. Can be used to perform a man-in-the-middle attack
- AZombie
- BARP Spoofing
- CBotnet
- DPhishing
24refers to a group of zombie computers that are commanded from a central control infrastructure.
- AZombie
- BBotnet
- CZero day
- DPhishing
25ifconfig is a command used in which os?
- Amac OS
- Bwindows OS
- CLinux OS
- DUnix OS
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- Quiz on Comptia Definitions, created by ONI Kaf on 02/04/2020.
- Author
- ONI Kaf
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- English
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