This Exam for the First semster in ccna certificate.
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TCP and UDP port numbers are used by application layer protocols.
TCP uses port numbers to provide reliable transportation of IP packets.
UDP uses windowing and acknowledgments for reliable transfer of data.
TCP uses windowing and sequencing to provide reliable transfer of data.
TCP is a connection-oriented protocol. UDP is a connectionless protocol.
Application layer
Network layer
Presentation layer
Session layer
Transport layer
1.MUA 2.MDA 3.MTA 4.SMTP 5.MTA 6.POP 7.MDA 8.MUA
1.MUA 2.POP 3.MDA 4.SMTP 5.MTA 6.MDA 7.SMTP 8.MUA
1.MUA 2.POP 3.SMTP 4.MDA 5.MTA 6.SMTP 7.POP 8.MUA
1.MDA 2.SMTP 3.MTA 4.SMTP 5.MTA 6.MUA 7.POP 8.MDA
1.MUA 2.SMTP 3.MTA 4.SMTP 5.MTA 6.MDA 7.POP 8.MUA
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Service port number
Host logical address
Device physical address
Virtual connection identifier
Application
Presentation
Session
Transport
Network
The session will be initiated using UDP. No additional acknowledgment will be required to establish the session.
The session will be initiated using TCP. No additional acknowledgment will be required to establish the session.
The session will be initiated using UDP. The returned web page will serve as an acknowledgment for session establishment.
The session will be initiated using TCP. A three-way handshake must be successfully completed before the session is established.
It uses error control mechanisms.
It uses a connectionless protocol only for multiple simultaneous transmissions.
It uses multiple Layer 2 source addresses.
It uses multiple port numbers.
Echo reply
Source quench
Route redirection
Destination unreachable
Physical layer
Data link layer
Network layer
Transport layer
0 to 255
0 to 1023
1024 to 49151
Greater than 65535
The client establishes a two-way connection to the server on port 21 for file transfer.
From the perspective of computer A, port 21 is used to signal a push to the server, and port 20 is used to signal a pull from the server.
There is a connection established to send files from the client to the server and a second connection to get files from the server to the client.
Computer A establishes a connection to the server on port 21 for control and uses a second connection on port 20 to download and upload files.
It uses error control mechanisms.
It uses a connectionless protocol only for multiple simultaneous transmissions.
It uses multiple Layer 2 source addresses.
It uses multiple ports.
Access switch
DHCP server
Hub
Router
Host A was assigned a network address.
Host B was assigned a multicast address.
Host A and Host B belong to different networks.
The gateway address was assigned a broadcast address.
00-08-a3-b6-ce-46
198.133.219.25:80
Http://www.cisco.com
C 198.133.219.0/24 is directly connected, FastEthernet0/0
Star
Ring
Point-to-point
Multi-access
Star
Ring
Point-to-point
Multi-access
The IP packet header
The incoming interface
The transport layer PDU
The source MAC address
PC
Switch
Router interface fa0/0
Router interface fa0/1
Network card failure
Network cables unplugged
Network cables unplugged
Subnet mask incorrectly entered
10.0.0.1
127.0.0.1
150.0.0.1
172.16.0.1
192.168.0.1
192.168.1.191
192.168.1.101
192.168.1.1
192.168.1.254
255.255.0.0
255.255.248.0
255.255.252.0
255.255.254.0
255.255.255.0
IP address: 10.10.9.37 Subnet mask: 255.255.255.240 Default gateway: 10.10.9.35
IP address: 10.10.9.37 Subnet mask: 255.255.255.224 Default gateway: 10.10.9.35
IP address: 10.10.9.29 Subnet mask: 255.255.255.248 Default gateway: 10.10.9.35
IP address: 10.10.9.29 Subnet mask: 255.255.255.248 Default gateway: 10.10.9.35
IP address: 10.10.9.37 Subnet mask: 255.255.255.224 Default gateway: 196.1.105.6
10.1.1.63
10.1.1.37
10.1.1.39
10.1.1.32
10.1.1.60
It uniquely identifies each host.
It assists in forwarding packets across internetworks.
It uses a logical 32-bit IPv4 address.
It is not a configurable address.
It is a physical address.
Flash
NVRAM
RAM
ROM
Router>
Router(config)#
Router#
Router(config-line)#
The interface is configured as a DCE device.
The interface timers are cleared.
The FastEthernet interface is made to emulate a serial interface by assigning it a timing signal.
The IP address for the serial interface is configured.
Uniquely identifies a router on the internet
Used by routing protocols to identify peer routers
Provides device identification to users logging on remotely
Determines the hosts that are allowed to connect to the device
This is a server response.
The UDP protocol is being used.
The destination port indicates a Telnet session.
The return segment will contain a source port of 23.
The next session originated from the client of this session will use the source port number 13358
This configuration allows users to connect by using a modem.
Users must specify which line, 0 or 4, they wish to connect to when making a connection.
This configuration allows users to connect to the router via the use of the telnet command.
This configuration allows five users to make simultaneous connections to this router.
The configured password is automatically encrypted on the router.
Issue the erase flash command.
Issue the reload command and respond no to the prompt that follows.
Issue the erase start-up config command.
Issue the copy running-config start-up config command.
Configure the device.
Configure individual interfaces.
Configure individual terminal lines.
Issue show and debug commands.
10.10.10.32
192.168.1.5
192.168.1.99
192.168.2.100
A, B, D, G
A, B, E, F
C, D, G, I
G, H, I, J
Issue the clock rate command on interface Serial 0/0/0
Issue the description command on interface Serial 0/0/1
Issue the ip address command on interface FastEthernet 0/0
Issue the no shutdown command on interface FastEthernet 0/1
An FTP client
A Telnet client
A terminal emulation program
A web browser
Telnet 192.168.1.1
Ping 192.168.1.1
Ftp 192.168.1.1
Tracert 192.168.1.1
10 Base-T
100 Base-FX
10 Base-5
100 Base TX
1000 Base LX
Connection 1 - rollover cable Connection 2 - straight-through cable Connection 3 - crossover cable
Connection 1 - straight-through cable Connection 2 - crossover cable Connection 3 - rollover cable
Connection 1 - crossover cable Connection 2 - rollover cable Connection 3 - straight-through cable
Connection 1 - crossover cable Connection 2 - straight-through cable Connection 3 - rollover cable
Connection 1 - straight-through cable Connection 2 - straight-through cable Connection 3 - straight-through cable
Destination MAC: 0030.8596.DE83 Default gateway: 209.165.202.130
Destination MAC: 0030.8596.DE82 Default gateway: 172.16.9.2
Destination MAC: 0030.8517.44C4 Default gateway: 172.16.1.1
Destination MAC: 0030.8517.44C4 Default gateway: 209.165.202.130
Straight-through cable
Crossover cable
Rollover cable
Serial cable
Segment1
Segment2
Segment3
Segment4
Segment5
Application layer
Presentation layer
Session layer
Transport layer
The "http" portion indicates the protocol that is being used.
The "web1.htm" portion is the specific service name.
The retrieved web page will be displayed in URL code.
The "www.cisco.com" is the name of the web page file that is called.
0 to 255
0 to 1023
1024 to 49151
49152 to 65535
The host portion of the IP address
The network portion of the IP address
Host default gateway address
The MAC address
DNS
FTP
DHCP
HTTP
SMTP
IP
TCP
UDP
Ethernet
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