When ordering switches for a new building, which of the following is the BEST way for the technician to determine the number of switches to put in each network closet?（）..

第1题

[] When is a switched network that is running the Spanning Tree Protocol considered to be fully converged?（）

A、A. when all switches have the same BID as the root switch B、B. when all switches have received the MAC address of each neighboring switch C、C. when every enabled switch port has been assigned a unique identifier D、D. when every operating switch port is in either the blocking or forwarding state E、E. when all switches are in either client, server, or transparent mode

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第2题

[单选题] When is a first-hop redundancy protocol needed in the distribution layer?（）

A、when HSRP is not supported by the design B、when multiple vendor devices need to be supported C、when preempt tuning of the default gateway is needed D、when a robust method of backing up the default gateway is needed E、when the design implements Layer 2 between the access switch and the distribution switch F、when the design implements Layer 3 between the access switch and the distribution switch

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第3题

[单选题] （） the cylinder walls, the heat passes through them by conduction.

A、When receiving by B、When received by C、In order to receiving D、In order to receive

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第4题

[单选题] When does the warranty of the XIV Storage System start? （）

A、when the order is placed B、when the product is shipped C、when the product is delivered D、when the product is installed

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第5题

[单选题] You need to create a table named ORDERS that contain four columns: 1. an ORDER_ID column of number data type 2. aCUSTOMER_ID column of number data type 3. an ORDER_STATUS column that contains a character data type 4. aDATE_ORDERED column to contain the date the order was placed. When a row is inserted into the table, if no value is provided when the order was placed, today's date should be used instead. Which statement accomplishes this?（）

A、CREATE TABLE orders ( order_id NUMBER (10), customer_id NUMBER (8), order_status VARCHAR2 (10), date_ordered DATE = SYSDATE); B、CREATE TABLE orders ( order_id NUMBER (10), customer_id NUMBER (8), order_status VARCHAR2 (10), date_ordered DATE DEFAULT SYSDATE); C、CREATE OR REPLACE TABLE orders ( order_id NUMBER (10), customer_id NUMBER (8), order_status VARCHAR2 (10), date_ordered DATE DEFAULT SYSDATE); D、CREATE OR REPLACE TABLE orders ( order_id NUMBER (10), customer_id NUMBER (8), order_status VARCHAR2 (10), date_ordered DATE = SYSDATE); E、CREATE TABLE orders ( order_id NUMBER (10), customer_id NUMBER (8), order_status NUMBER (10), date_ordered DATE = SYSDATE); F、CREATE TABLE orders ( order_id NUMBER (10), customer_id NUMBER (8), order_status NUMBER (10), date_ordered DATE DEFAULT SYSDATE);

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第6题

[单选题] You need to create a table named ORDERS that contain four columns: 1. an ORDER_ID column of number data type 2. aCUSTOMER_ID column of number data type 3. an ORDER_STATUS column that contains a character data type 4. aDATE_ORDERED column to contain the date the order was placed. When a row is inserted into the table, if no value is provided when the order was placed, today's date should be used instead. Which statement accomplishes this? （）

A、CREATE TABLE orders ( order_id NUMBER (10), customer_id NUMBER (8), order_status VARCHAR2 (10), date_ordered DATE = SYSDATE); B、CREATE TABLE orders ( order_id NUMBER (10), customer_id NUMBER (8), order_status VARCHAR2 (10), date_ordered DATE DEFAULT SYSDATE); C、CREATE OR REPLACE TABLE orders ( order_id NUMBER (10), customer_id NUMBER (8), order_status VARCHAR2 (10), date_ordered DATE DEFAULT SYSDATE); D、CREATE OR REPLACE TABLE orders ( order_id NUMBER (10), customer_id NUMBER (8), order_status VARCHAR2 (10), date_ordered DATE = SYSDATE); E、CREATE TABLE orders ( order_id NUMBER (10), customer_id NUMBER (8), order_status NUMBER (10), date_ordered DATE = SYSDATE); F、CREATE TABLE orders ( order_id NUMBER (10), customer_id NUMBER (8), order_status NUMBER (10), date_ordered DATE DEFAULT SYSDATE);

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第7题

[单选题] Why would an administrator change the value of the spanning-tree priority of a switch?（）

A、in order to optimize the path that frames take from source to destination B、to increase the priority so a designated port will become a root port C、to increase the BID, so the switch is more likely to become root bridge D、in order to allow VLANs to be sent from one switch to another across a single link E、to force a given switch to become an STP server

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第8题

[] Examine the SQL statement that creates ORDERS table: CREATE TABLE orders (SER_NO NUMBER UNIQUE, ORDER_ID NUMBER, ORDER_DATE DATE NOT NULL, STATUS VARCHAR2(10) CHECK (status IN ('CREDIT', 'CASH')), PROD_ID NUMBER REFERENCES PRODUCTS(PRODUCT_ID), ORD_TOTAL NUMBER, PRIMARY KEY (order_id, order_date)); For which columns would an index be automatically created when you execute the above SQL statement? （） Examine the SQL statement that creates ORDERS table: CREATE TABLE orders (SER_NO NUMBER UNIQUE, ORDER_ID NUMBER, ORDER_DATE DATE NOT NULL, STATUS VARCHAR2(10) CHECK (status IN ('CREDIT', 'CASH')), PROD_ID NUMBER REFERENCES PRODUCTS(PRODUCT_ID), ORD_TOTAL NUMBER, PRIMARY KEY (order_id, order_date)); For which columns would an index be automatically created when you execute the above SQL statement? （）

A、A. SER_NO B、B. ORDER_ID C、C. STATUS D、D. PROD_ID E、E. ORD_TOTAL F、F. composite index on ORDER_ID and ORDER_DATE

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第9题

[单选题] To which switch or switches should you provide redundant links in order to achieve high availability with reliable fast convergence in the enterprise campus?（）

A、to a core switch running Cisco NSF and SSO from redundant distribution switches connected with a Layer 2 link B、to a core switch running Cisco NSF and SSO from redundant distribution switches connected with a Layer 3 link C、to two core switches from redundant distribution switches connected with a Layer 2 link D、to two core switches from redundant distribution switches connected with a Layer 3 link E、to two core switches running Cisco NSF and SSO from two redundant distribution switches running Cisco NSF and SSO

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When ordering switches for a new building, which of the following is the BEST way for the technician to determine the number of switches to put in each network closet?（）

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