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1 A network administrator provides an IP address of 128.135.0.142 and a subnet mask of 255.0.0.0. Once a ping is attempted， it fails. Which of the following options is the most probable cause of the failed ping？（）

2 Which of the following commands should be used to make permanent static route entries that will persist across reboots？（）

3 The statement： "search austin.ibm.com raleigh.ibm.com" belongs in which of the following files？（）

4 In order to increase reliability， minimize collisions and establish a large number of systems on an Ethernet segment， which of the following options should be selected for the Ethernet network？（）

IBM(000-236)單項(xiàng)選擇題每日一練(2019.01.11)