Networking Practice Questions Flashcards
When using TCP, two hosts first establish a connection through a three-way handshake. This handshake process is established in the following order:
-The first host sends a SYN packet asking to create a new session.
-The receiving host replies with a SYN-ACK packet acknowledging that the session can be created.
-The first host replies with the ACK packet, which then opens the session.
Each packet contains a packet header, which is a special label that defines the sender, receiver, and data chunk order.
true
A SYN packet and an ACK packet are part of the TCP three-way handshake process to establish a connection between two hosts.
true
Information about how to deliver the packet is the IP protocol’s responsibility.
true
Trivial File Transfer Protocol (TFTP) is a simple protocol for exchanging files between two TCP/IP machines. It is not contained in a packet’s header.
true
User Datagram Protocol (UDP)
is a Transport layer protocol that uses a simple connectionless communication model with a minimal protocol mechanism. This makes it suitable for streaming video or sound. Guaranteed data delivery is not as important as fast transmissions.
Transport Layer Protocol (TCP)
is a Transport layer protocol that provides reliable, ordered, and error-checked data delivery. Guaranteed data delivery is more important than fast transmissions.
Internet Control Message Protocol (ICMP)
is an Internet layer protocol used by network devices, including routers, to send error messages and operational information. For example, ICMP may state that a service is unavailable or a host couldn’t be reached.
File Transfer Protocol (FTP)
is an Application layer protocol used to transfer computer files between hosts.
Domain Name System
(DNS)
Dynamic Host Configuration Protocol
(DHCP)
Lightweight Directory Access Protocol
(LDAP)
Simple Network Management Protocol
(SNMP)
Clients use DHCP to request an IP address, and servers use DHCP to provide an IP address.
true
SNMP
is used to collect information about managed devices on IP networks. SNMP can also modify settings to change a network device’s behavior.
LDAP
is used to access and maintain distributed directory information services.
DNS
associates readily recognizable domain names to numerical IP addresses.
DHCP
is used by clients to request an IP address and by a server to offer an IP address.
SMB
is used for shared access to files and miscellaneous communications between hosts on a network. This protocol also provides an authenticated inter-process communication mechanism.
SSH
allows network services to communicate securely over an unsecure network (for example, secure remote login to computer systems by users).
File Transfer Protocol (FTP)
It enables file transfers and supports user authentication
Simple Network Management Protocol (SNMP)
is used to remotely monitor and manage network devices and hosts.
Simple Mail Transfer Protocol (SMTP)
is used to transfer email message from email clients to email servers.
Trivial File Transfer Protocol (TFTP)
also enables file transfer but does not support user authentication.
Lightweight Directory Access Protocol (LDAP)
allows access to information about network resources stored in a directory server.
Secure Shell (SSH)
allows users to securely access a remote computer system’s console prompt.
IMAP
allows a mail server to keep a copy of a user’s messages on the server after they’re downloaded to the mail client.
SMTP
allows a user to send email to a server, but it can’t be used to retrieve messages from the server.
A POP3 server
is also used by a mail client to retrieve messages from a mail server, but it requires that the messages be deleted from the server after they’ve been downloaded.
NTP
synchronizes all network computer clocks.
Server Message Block (SMB)
is used by Windows systems to access shared resources over the network.
Lightweight Directory Access Protocol (LDAP)
is used to access information stored in a server’s directory service.
Remote Desktop Protocol (RDP)
is used to access remote systems’ desktops.
Secure File Transfer Protocol (SFTP)
is used to securely transfer files between hosts.
The Windows proprietary network protocol that allows the technician to open a graphical interface to connect with the user’s Windows computer is
Remote Desktop Protocol (RDP). By default, RDP uses port 3389.
HTTP
uses port 80.
HTTPS
uses port 443.
IMAP
email clients use port 143.
