Which of the following protocols requests membership to a multicast group?（）

A wireless access point supports up to 20 clients. Which of the following describes this wirelessnetwork?（）

Which of the following is a hybrid network topology used for fault tolerance, in which all computersMUST connect to each other?（）

Which of the following ports would have to be allowed through a firewall to allow SNMP traffic topass on its default port?（） (Select TWO).

A network technician is concerned about the environmental effects of power consumption and heat from network resources Limited space is also a concern. Which of the following technologies should be implemented?（）

Which of the following uses a ring topology?（）

An administrator attempts to open a web page and sees the following error: 'Error 404: Page not found'. The administrator then uses the ping command and finds that the default gateway cannot be pinged.At which of the following layers does the problem MOST likely reside?（）

A company has recently received a new ADSL backup Internet connection. Which of the followingwill MOST likely be used between the modem and the ISP?（）

Which of the following should be updated when new computers are purchased?（）

A user is unable to access the company website on a laptop. A network technician verifies that theuser can access other Internet pages. According to network troubleshooting methodology, which of the following steps should be taken NEXT?（）