Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
42 Cards in this Set
- Front
- Back
TCP and UDP |
Transmission Control Protocol and User Datagram Protocol- the 2 primary protocols used to Transport data across a network |
|
TCP |
Starts data transmission with an established session using a 3-way handshake process |
|
UDP |
Transmits data using a best-effort method with no session |
|
TCP 3-way handshake process |
1. SYN 2. SYN/ACK 3. ACK (session now established, data is transmitted) |
|
TCP sliding window |
The number of segments that can be sent at a time |
|
Cyclical redundancy check (CRC) |
An error-checking process used to verify that the data in each segment is intact |
|
NACK |
Negative acknowledge packet, sent when a segment or part of a segment is corrupt or missing; causes the sending computer to retransmit the segments in the sliding window |
|
Address Resolution Protocol (ARP) |
Uses broadcast transmissions to identify the MAC address of computers |
|
To access ARP |
Cmd prompt -> arp -a |
|
Hypertext Transfer Protocol (HTTP) |
Defines how files on the WWW are formatted, transmitted, and rendered in web browsers |
|
Hypertext Transfer Protocol over SSL (HTTPS) |
HTTP that uses Secure Socket Layers to encrypt data transmissions over the WWW |
|
Hypertext Markup Language (HTML) |
The Internet standard for formatting and displaying documents on the Internet |
|
Encryption protocols |
Scramble plain text into cipher text |
|
File Transfer Protocol (FTP) |
Used to upload/download files to and from computers on the Internet (uses TCP) |
|
Trivial File Transfer Protocol (TFTP) |
A scaled-down version of FTP that uses UDP instead of TCP |
|
Telnet |
A command-line interface that allows bidrectional communication within a network |
|
Secure Shell (SSH) |
An encryption protocol that creates a secure encrypted session that can be used by other protocols; has replaced Telnet in many applications |
|
Remote Desktop Services (RDS) |
Used on Microsoft Windows servers to host applications or entire desktops that are accessible to users on a network |
|
Secure Sockets Layer (SSL) |
An encryption protocol used to provide confidentiality, integrity, and authentication with digital certificates |
|
Confidentiality |
Protecting secret data from unauthorized disclosure (often through encryption) |
|
Integrity |
Protects data from being modified by unauthorized users (often by checking the data at different points) |
|
Authentication |
Protects data by granting or denying access after a user/computer's identity has been verified |
|
Transport Layer Security (TLS) |
An encryption protocol that provides security through confidentiality, integrity, and authentication; designed to replace SSL |
|
Digital certificate |
A file stored on a computer that helps verify the entity's identity, and helps with encryption and integrity |
|
Public Key Infrastructure (PKI) |
Has several elements that support digital certificates |
|
Certificate Authority (CA) |
An organization or service that issues, manages, and validates digital certificates |
|
Internet Protocol Security (IPSec) |
An encryption protocol used by both IPv4 and IPv6 that uses an authentication header (AH), encapsulating security protocol (ESP), and ensures data integrity |
|
Tunnel Mode (IPSec) |
Encrypts the entire packet (data and headers); used by VPNs |
|
Transport Mode (IPSec) |
Encrypts only the data (not the headers); used within internal networks |
|
Simple Mail Transfer Protocol (SMTP) |
The primary protocol used to deliver email over the Internet (b/w SMTP servers) and within internal networks |
|
Post Office Protocol v3 (POP3) |
A common protocol used to retrieve email from an email server (POP3); typically removes the email once received |
|
Internet Message Access Protocol (IMAP4) |
A common protocol used to retrieve email from an email server (IMAP4), commonly used on internal networks since it retains email messages |
|
Lightweight Directory Access Protocol (LDAP) |
The protocol used to query directories such as Microsoft's Active Directory Domain Services; uses plain text by default |
|
Domain directory |
A database of objects such as users, computers, and groups |
|
Disk drive folders |
Directories found only on disk drives (nothing to do with LDAP) |
|
Secure Lightweight Directory Access Protocol (SLDAP) |
LDAP that uses SSL or TLS and digital certificates to protect data from sniffers |
|
Kerberos |
The primary authentication protocol used within a Microsoft domain (part of Active Directory); developed by MIT; issues time-stamped tickets encrypted with symmetric cryptography |
|
Point-to-Point Tunneling Protocol (PPTP) |
A VPN protocol that provides a secure connection over a public network (such as the Internet) |
|
Simple Network Management Protocol (SNMP) |
A management protocol used to manage network devices such as routers and switches |
|
Internet Group Multicast Protocol |
A protocol used for multicast transmissions for IPv4 that uses Class D multicast addresses |
|
Multicast Class D IPv4 addresses |
224.0.0.0-239.255.255.255 |
|
Internet Control Message Protocol (ICMP) |
A core protocol used to send error messages and to communicate the availability or unavailability of services |