what are the port numbers for DNS,FTP,TELNET,SMTP,NNTP
- 5 Answers
- 59943 Views
- Airtel, Walton Group, I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
Answer / jitendera kumar sinha
protocol port number
ftp data 20
ftp program 21
telnet 23
dns 53
nntp 119
smtp 25
| Is This Answer Correct ? | 91 Yes | 13 No |
Answer / anoop kumar gupta
PORT NUMBER:--
• 18 – MSP (Message Send Protocol)
• 20 - FTP (File Transfer Protocol) for data transfer
• 21 – FTP (File Transfer Protocol) for data control
• 23 – Telnet
• 22 – SSH - Remote Login Protocol
• 25 - SMTP (Simple Mail Transfer Protocol) for is
used for sending mails.
• 53 – DNS (Domain Name System)
• 67 – DHCP (Dynamic Host Configuration Protocol) for
sending data to the server – Bootps
• 68 – DHCP (Dynamic Host Configuration Protocol) for
data to the client - Bootpc
• 80 – HTTP (Hypertext Transfer Protocol)
• 109 – POP2
• 110 - POP3 (Post Office Protocol) used for
receiving mails but it uses log-in process.
• 119 – NNTP (Network News Transfer Protocol)
• 137 – NetBIOS Name Service
• 139 – NetBIOS Datagram Service
• 143 – IMAP4 (Interim Mail Access Protocol) used for
receiving mails.
• 150 – NetBIOS Session Service
• 161 – SNMP
• 179 – BGP (Border Gateway Protocol)
• 389 – LDAP (Lightweight Directory Access Protocol)
• 443 – HTTPS (HTTP-secure)
• 546 – DHCP Client
• 547 – DHCP Server
| Is This Answer Correct ? | 55 Yes | 2 No |
Answer / rakesh kumar agrawal
dns =53
ftp= 20
telnet=23
smtp=25
nntp=119
| Is This Answer Correct ? | 52 Yes | 5 No |
Answer / lamesgin
protocol port number
DNS 53
SMTP 25
FTP data 20
FTP control 21
TELNET 23
NNTP 119
| Is This Answer Correct ? | 33 Yes | 3 No |
On an ISDN BRI interface, the control channel is the 'D' channel. What is the rate of this channel? A.) 64 Kbps B.) 1.544 Mbps C.) 128 Kbps D.) 2.048 Mbps E.) 16 Kbps
What's the default CDP holdtime in seconds for Cisco routers? A.) 30 seconds B.) 180 seconds C.) 90 seconds D.) 60 seconds
Define the virtual channel?
Which command will display the encapsulation type on interface serial 0? A.) show interface s0 B.) show all C.) show int s0 encap D.) show encap s0 E.) show encap
What is the difference between csma/cd and csma/ca?
any body can send me CCNA voice simulator practice exam software.
Identify 2 PPP characteristics? A.) Is proprietary to Cisco B.) Supports authentication C.) Support compression D.) Run on a multi-access network
How ICMP is used in ping and traceroute facilities
Referring to the commands shown, what command must next be used on the branch router prior to traffic being sent to the router router?
What is switch priority & why it is used????
Why Clock rate command is not configured on ethernet interface of a router?
routing information
CCNA 
