protected function getLayout()
    {
        $this->setData('homeUrl', $this->getServiceManager()->get(DefaultUrlService::SERVICE_ID)->getUrl('ProctoringHome'));
        $this->setData('logout', $this->getServiceManager()->get(DefaultUrlService::SERVICE_ID)->getUrl('ProctoringLogout'));
        return ['layout.tpl', 'taoProctoring'];
    }