Name Period CCNA 2 Chapter 2 Study Guide Section Question/Topic 1 2.1.1 ISP Help Desk Organization 2 2.1.2 Roles of ISP Technicians ISP help desk technicians provide solutions to customer problems with the goal of _____ _____ and _____ _____. A business is experiencing connectivity issues requiring the installation and configuration of new equipment. This function requires Level ___ or higher support. 3 2.1.2 Roles of ISP Technicians 2.1.3 Interacting with Customers 2.1.3 Interacting with Customers 4 5 6 7 2.2.1 Using the OSI Model 2.2.2.3 OSI Model Protocols and Technologies 2.2.2.2 OSI Model Protocols and Technologies 2.2.2 OSI Model Protocols and Technologies 8 2.2.2 OSI Model Protocols and Technologies 9 2.2.2 OSI Model Protocols and Technologies 2.2.2 OSI Model Protocols and Technologies 10 11 2.2.3 Troubleshooting the OSI Model 12 2.2.3 Troubleshooting the OSI Model After trying unsuccessfully to fix a problem, the help desk technician sends the trouble ticket to the onsite support staff. This process is referred to as _____. Incident management includes __________ and following a __________. Two functions of the physical layer of the OSI model: 1. 2. One of the functions of the ______ layer of the OSI model is to deliver data reliably across the network using TCP. The functions of initiating the network communication process and encrypting and compressing data for transmission are provided by the _____ layers (5-7) of the OSI model. Scenario: A firewall filtering traffic addressed to TCP port 25 on an email server. This scenario represents a problem at Layer ____ of the OSI model. The _______ address is used by the router to direct a packet between networks. This is the correct encapsulation order when data is passed from Layer 1 up to Layer 4 of the OSI model: 1. 2. 3. 4. A customer calls to report a problem accessing an ecommerce web site. The technician first asks the customer if he can access other web sites. The help desk technician begins troubleshooting using a _____ approach. These three command line utilities are most commonly used to troubleshoot issues at Layer 3: 1. Answer 13 2.2.3 Troubleshooting the OSI Model 14 2.2.3 Troubleshooting the OSI Model 15 2.2.3 Troubleshooting the OSI Model 16 2.2.3 Troubleshooting the OSI Model 17 2.3.1 Help Desk Troubleshooting Scenarios 18 2.3.1 Help Desk Troubleshooting Scenarios 19 2.3.1 Help Desk Troubleshooting Scenarios 2. 3. A loose network cable can cause a user to lose Internet connectivity. This is considered a Layer __ problem. A customer calls the help desk about setting up a new PC and cable modem and being unable to access the Internet. Bottom-up troubleshooting questions might include: 1. 2. 3. A customer calls the ISP help desk after setting up a new PC with a cable modem but being unable to access the Internet. After the help desk technician has verified Layer 1 and Layer 2, what are three questions the help desk technician should ask the customer? The first step that is used by a help desk technician in a systematic approach to helping a customer solve a problem: _____. While troubleshooting a connectivity issue on a host, a network administrator issues the ping 127.0.0.1 command. The pings are unsuccessful. What is most likely the problem? The DHCP server in a lab environment is down when multiple DHCP clients in the lab are booted for the first time. Which two statements describe how the DHCP clients will be affected by the absence of a DHCP server during boot? Refer to the exhibit. Host D is unable to communicate with any other hosts. On this network is a DHCP server that is responsible for assigning addresses to hosts. Based on the output of the ipconfig command on host D, what is the most likely cause of the problem? 20 2.3.2 Creating and Using Help Desk Records In what three ways do Level 1 and Level 2 help desk technicians attempt to identify a customer's problems?